Portable blockchain mining systems with sound attenuation, and methods of use

Abstract

A portable blockchain mining system has a portable enclosure having end walls, side walls, a base, and a roof, which collectively define an interior; an air inlet defined in a first end wall of the end walls; an air outlet defined in a second end wall of the end walls, opposite the first end wall; one or more air filters; a plurality of blockchain mining processors mounted on a rack downstream of the air filter; and sound baffles within the interior adjacent the air inlet and the air outlet.

Description

PORTABLE BLOCKCHAIN MINING SYSTEMS WITH SOUND ATTENUATION, AND METHODS OF USE TECHNICAL HELD

[0001] This document relates to portable blockchain mining systems and methods of use. BACKGROUND

[0002] The following paragraphs are not an admission that anything discussed in them is prior art or part of the knowledge of persons skilled in the art. Portable enclosures, such as modified intermodal transport container units are known to be used to house plural cryptocurrency mining processors connected through the internet to verily cryptocurrency transactions. Such units consume enormous amounts of electricity and generate excessive heat as a result.SUMMARY

[0003] A portable blockchain mining system is disclosed comprising: a portable enclosure having end walls, side walls, a base, and a roof, which collectively define an interior; an air inlet defined in a first end wall of the end walls; an air outlet defined in a second end wall of the end walls, opposite the first end wall; one or more air filters; a plurality of blockchain mining processors mounted on a rack downstream of the one or more air filters; and sound baffles within the interior adjacent the air inlet and the air outlet.

[0004] A blockchain mining method is disclosed for mining transactions for a network that stores or has access to a blockchain database, the blockchain database being a distributed database stored on plural nodes in the network, the network being a peer-to-peer network, the blockchain database storing transactional information for a digital currency, the blockchain mining method comprising: operating a portable blockchain mining system using electricity from a source of energy to mine transactions associated with the blockchain database; in which the portable blockchain mining system has a portable enclosure, an air inlet and air outlet defined in first and second end walls of the portable blockchain mining system, one or more air filters, a plurality of blockchain mining processors connected to a network interface, and sound baffles upstream and downstream of the plurality of blockchain mining processors.

[0005] In various embodiments, there may be included any one or more of the following features: A supply fan located within the interior of the portable enclosure upstream of the rack, and connected to boost air flow and pressure of air passing from the air inlet. The portable enclosure defines a central axis of airflow between the end walls, and the supply fan is mounted coaxial with the central axis. A plurality of supply fans, located in parallel laterally adjacent one another. The supply fan is mounted over an air passage defined by an upstream partition extended between the side walls within the interior to define an upstream chamber, the rack being downstream of the upstream chamber. The supply fan comprises an axial flow air supply fan that is hermetically sealed to the air passage. The one or more air filters comprises a primary air filter that is upstream of the rack. The primary air filter comprises an array of pocket filters. The primary filter is formed as or mounted on a permeable filter partition that is extended between the side walls within the interior to direct all air flow passing through the interior to pass through the primary filter. The one or more air filters comprise a pre-filter upstream of the primary air filter, in some cases also the supply fan. The supply fan is located in between the pre-filter and the primary filter. The pre-filter comprises an insect and weather screen. The sound baffles comprise an upstream array of sound baffles within the upstream chamber. The rack forms a rack partition that is extended laterally between the opposed side walls and is hermetically sealed to define an upstream cold aisle and a downstream hot aisle. The rack comprises a matrix of beams and columns that are arranged to defineplural processor-receiving openings, across which the plurality of blockchain mining processors extend. The rack mounts the plurality of blockchain mining processors in a matrix arrangement that forms a miner wall that extends a depth of a single respective blockchain mining processor. The rack and plurality of blockchain mining processors define a mining zone that occupies less than one third of an axial depth of the portable enclosure defined between the end walls. The sound baffles comprise: an upstream array of sound baffles at or adjacent the air inlet; and a downstream array of sound baffles at or adjacent the air outlet. One or both of the upstream array of sound baffles and the downstream array of sound baffles comprise an array of sound baffle panels spaced laterally and axially relative to one another between the side walls and are arranged one or more of: along or forming walls of one or more circuitous passages; and parallel to one another; and transverse to an axis of the portable enclosure defined from the first to the second end wall. The portable enclosure comprises an intermodal shipping container. A length of the side walls of the portable enclosure is greater than a width of the end walls. The length is at least two times longer than the width. The length is twenty feet or shorter. One or more of: the first end wall is defined by a first end door; and the second end wall is defined by a second end door. One or both of the side walls define a maintenance access side door that opens to an upstream cold aisle defined by the rack. The side walls each define a maintenance access side door or door passage that opens to an upstream cold aisle defined by the rack. The maintenance access side doors or door passages align to provide a common walk-through aisle between plural of the portable blockchain mining systems when positioned side by side. The side walls are configured to be free of electrical and network components, and access points or to locate the electrical and network components to be accessible from one or both the first and the second of the side walls, such that access to the electrical and network components is not obstructed by, and does not conflict with, additional portable blockchain mining systems identical to the portable blockchain mining system and that are stacked vertically or horizontally adjacent the portable blockchain mining system. The portable blockchain mining system comprises an electrical distribution panel mounted adjacent the first end wall and accessible from an exterior of the first end wall. The electrical distribution panel is mounted within an electrical distribution chamber defined at the first end wall and accessible via an electrical access door in the first end wall. A pair of chamber walls are spaced from the side walls within the interior, at or adjacent the first end wall, to define a pair of sound baffle chambers and the electrical distribution chamber between the pair of sound baffle chambers, the sounds baffle chambers containing sound baffles. A plurality of the portable blockchain mining systems are adjacent to one another. The portable enclosures are arranged side-by-side and parallel relative to one another, with side walls between adjacent portable enclosures in close proximity or in contact with one another. Maintenance side access passages between adjacent portable enclosures align to provide a common walk-through aisle between the portable enclosures. The portable enclosures are stacked on top of and parallel relative to one another, with roofs and bases of adjacent portable enclosures in close proximity or in contact with one another. The portable blockchain mining system is connectable to a network that stores or has access to a blockchain database with transactional information for a digital currency, in which: the plurality of blockchain mining processors are connected to a network interface, which is connected to receive and transmit data through the internet to the network, in which the plurality of blockchain mining processors are to mine transactions associated with the blockchain database and to communicate with the blockchain database. Operating the portable blockchain mining system to mine blockchain transactions in the blockchain network. An air mover connected to direct air through the cooling air passageway from the air inlet to the air outlet. The blockchain miningprocessor mounting zone is elevated above the base to a position adjacent a roof of the panels. The panels define or form a processor access door that is structured to open to the blockchain mining processor mounting zone. A roof of the panels forms the processor access door and is pivotally connected to a side wall of the panels. A side wall of the panels forms the processor access door. The processor access door comprises peripheral weatherstripping. Each blockchain mining processor comprises one or more of: a body; a processor board mounted on the body and containing one or more application-specific integrated circuit chips; a controller; a power connector; a network connector; and one or more fans connected to direct air through the cooling air passageway across the blockchain mining processor to maintain the blockchain mining processor within a respective operating range of temperature. The one or more fans comprise one or more of: an intake fan at an intake end of the body; and a discharge fan at a discharge end of the body. Operating the blockchain mining processor of the blockchain mining system to process blockchain transactions. The cooling fan moves cooling air through an air inlet defined in an inlet in the portable housing into the labyrinthine inlet conduit. Cooling air recirculates through an adjustable air recirculation valve from the labyrinthine outlet conduit back to the labyrinthine inlet conduit. The cooling fan moves cooling air through the labyrinthine outlet conduit and to an air outlet defined in an outlet in the portable housing. The blockchain mining processor has a network interface; the network interface is connected to receive and transmit data through the internet to a network that stores or has access to a blockchain database; and the mining processor is connected to the network interface and adapted to mine transactions into blocks associated with the blockchain database and to communicate with the blockchain database. The network is a peer-to-peer network; the blockchain database is a distributed database stored on plural nodes in the peer-to-peer network; and the blockchain database stores transactional information for a digital currency. Operating the blockchain mining system to: mine transactions with the blockchain mining system, for example by mining the most recent block on the blockchain with the blockchain mining system; and communicate wirelessly through the internet to communicate with a blockchain database. The network interfaces comprise one or more of a satellite, cellular, or radio antenna, connected to a modem. Successfully mining a block by a mining processor provides a reward of the digital currency, and the reward is assigned to a digital wallet or address stored on a computer readable medium. The system runs on polyphase (three phase) power or single-phase power. The portable housing has height dimensions of less than four feet. The portable housing forms a ground engaging skid. Two or more portable blockchain mining modules are secured together to form a wall of portable blockchain mining modules. The modules may be located anywhere, for example inside or outside a building. Two or more of the portable blockchain mining modules are stacked in a vertical stack one on top of the other, resting on each other by gravity and / or secured together using respective module mounting mechanisms. Two or more of the portable blockchain mining modules are arranged in a horizontal row, and unsecured or secured together using respective module mounting mechanisms. The portable blockchain mining modules are aligned such that the air inlets are located on a first side of the wall, and the air outlets are located on a second side of the wall. The portable blockchain mining modules are connected to receive power from a central power source. Before operating, stacking the plurality of portable blockchain mining modules in the vertical stack by securing the base of the first portable blockchain mining module to the roof of the second portable blockchain mining module. The wall has a horizontal row of two or more portable blockchain mining modules, with a side wall of one portable blockchain mining module secured to a side wall of another portable blockchain mining module.

[0006] These and other aspects of the device and method are set out in the claims, which are incorporated here by reference.

[0007] BRIEF DESCRIPTION OF THE FIGURES

[0008] Embodiments will now be described with reference to the figures, in which like reference characters denote like elements, by way of example, and in which:

[0009] Fig. 1 is a perspective view of a portable blockchain mining system, with a roof and one side wall removed for illustrative purposes. Fig. 2 is a top plan view of the system of Fig. 1, with the roof removed. Fig. 3 is an exploded view of the area denoted by the 3-3 lines in Fig. 2. Fig. 3 A is an exploded view of on of the labyrinthine inlet passages illustrated in Fig. 3. Fig. 4 is an exploded view of the area denoted by the 4-4 lines in Fig. 2. Fig. 4A is an exploded view of one of the labyrinthine inlet passages illustrated in Fig. 4. Fig. 5 is a side elevational cross-sectional view of the area shown in Fig. 4. Fig. 6 is a perspective view of the image of Fig. 5. Fig. 7 is a perspective view of the system of Fig. 1 , with end doors open, and side wall and roof present. Fig. 8 is a cross-sectional end view of a rack of the system of Fig. 1, with mining processors mounted in a matrix form on the rack. Fig. 9 is a perspective view of the portable blockchain mining system of Fig. 1 , with a roof and one side wall removed for illustrative purposes, and the mining processors cleared from the rack. Figs. 10 and 11 are first and second end perspective views of the system of Fig. 1. Fig. 12 is a perspective view of a plurality of systems from Fig. 1, stacked in four vertical columns and two horizontal rows, to form a wall of systems. Fig. 13 is a perspective view of a blockchain mining processor. Fig. 14 is a top plan view of another embodiment of an inlet sound baffle chamber of the system of Fig. 1, with the roof and side walls removed, and illustrating a plurality of supply fans arranged in parallel. Fig. 15 is a perspective view of the image of Fig. 14. Fig. 16 is a top plan view of another embodiment of an inlet sound baffle chamber of the system of Fig. 1, with the roof and side walls removed, and illustrating a plurality of supply fans arranged in series and parallel. DETAILED DESCRIPTION

[0010] Immaterial modifications may be made to the embodiments described here without departing from what is covered by the claims.

[0011] A cryptocurrency (or crypto currency) is a digital asset designed to work as a medium of exchange that uses strong cryptography to secure financial transactions, control the creation of additional units, and verily the transfer of assets. Cryptocurrencies use decentralized control as opposed to centralized digital currency and central banking systems. The decentralized control of each cryptocurrency works through distributed ledger technology, typically a blockchain that serves as a pubhc financial transaction database.

[0012] As of the latest developments in cryptocurrency, several key topics are dominating the discourse. One notable area is the ongoing evolution of regulatory frameworks worldwide. Governments are increasingly scrutinizing and shaping pohcies around digital assets, aiming to balance innovation with investor protection and financial stability . Additionally, the integration of blockchain technology into various sectors is gaining momentum, with applications ranging from decentralized finance (DeFi) and non-fiingible tokens (NFTs) to supply chain management and voting systems. The environmental impact of cryptocurrency mining remains a contentious issue, prompting discussions on transitioning to more sustainable practices. Moreover, the rise of central bank digital currencies (CBDCs) continues to reshape the landscape, posing both opportunities and challenges to traditional financial systems. Amidst thesedevelopments, market volatility persists, driven by factors such as macroeconomic trends, regulatory announcements, and technological advancements, underscoring the dynamic nature of the crypto space.

[0013] A blockchain is a form of database, which may be saved as a distributed ledger in a network of nodes that maintains a continuously growing hst of records called blocks. Each block contains a timestamp and a link to a previous block. The data in a block cannot be altered retrospectively without significant computational effort and majority consensus of the network. The first blockchain was allegedly conceptualized by Satoshi Nakamoto in 2008 and implemented the following year as a core component of the digital currency Bitcoin, where it serves as the public ledger for all transactions. Through the use of a peer-to-peer network and a distributed timestamping server, a blockchain database is managed autonomously. The administration of Bitcoin currency is currently the primary use for blockchain technology, but there are other use cases for blockchain technology to maintain accurate, tamper-proof databases. Examples include maintaining records of land titles and historical events. While the potential in blockchain technology is vast, Bitcoin remains the most widely used today.

[0014] By design blockchains are inherently resistant (and assumed to be effectively impervious) to modification of the data — once recorded, the data in a block cannot be altered retroactively without network consensus. Blockchains are an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way. The ledger itself can also be programmed to trigger transactions automatically. Blockchains are secure by design and an example of a distributed computing system with high byzantine fault tolerance. Decentralized consensus can therefore be achieved with a blockchain. This makes the blockchain model suitable for the recording of events, medical records, and other records management activities, identity management, transaction processing and proving provenance. This offers the potential of mass disintermediation and vast repercussions for how global trade is conducted.

[0015] A blockchain facilitates secure online transactions. A blockchain is a decentralized digital ledger that records transactions on thousands of computers globally in such a way that the registered transactions cannot be altered retrospectively. This allows the participants to verily and audit transactions in an inexpensive manner. Transactions are authenticated by mass collaboration powered by collective self-interests. The result is a robust workflow where participants' uncertainty regarding data security is marginal. The use of a blockchain removes the characteristic of infinite reproducibility from a digital asset. It confirms that each unit of digital cash was spent only once, solving the long-standing problem of double spending. Blockchains have been described as a value-exchange protocol. This exchange of value can be completed more quickly, more safely and more cheaply with a blockchain. A blockchain can assign title rights because it provides a record that compels offer and acceptance. From the technical point of view a blockchain is a hash chain inside another hash chain.

[0016] A blockchain database may comprise two kinds of records: transactions and blocks. Blocks may hold batches of valid transactions that are hashed and encoded into a Merkle tree. Each block may include the hash of the prior block in the blockchain, linking the two. Variants of this format were used previously, for example in Gt, and may not by itself be sufficient to qualify as a blockchain. The linked blocks form a chain. This iterative process confirms the integrity of the previous block, all the way back to the original genesis block. Some blockchains create a new block as frequently as every five or fewer seconds. As blockchains age they are said to grow in height. Blocks are structured by division into layers.

[0017] Sometimes separate blocks may be validated concurrently, creating a temporary fork. In addition to a secure hash-based history, each blockchain has a specified algorithm for scoring different versions of the history so that one with a higher value can be selected over others. Blocks that are not selected for inclusion in the chain are called orphan blocks. Peers supporting the database don't have exactly the same version of the history at all times, rather they keep the highest scoring version of the database that they currently know of. Whenever a peer receives a higher scoring version (usually the old version with a single new block added) they extend or overwrite their own database and retransmit the improvement to their peers. There is never an absolute guarantee that any particular entry will remain in the best version of the history forever, but because blockchains are typically built to add the score of new blocks onto old blocks and there are incentives to only work on extending with new blocks rather than overwriting old blocks, the probability of an entry becoming superseded goes down exponentially as more blocks are built on top of it, eventually becoming very low. For example, in a blockchain using the proof-of-work system, the chain with the most cumulative proof-of-work is always considered the valid one by the network. In practice there are a number of methods that can demonstrate a sufficient level of computation. Within a blockchain the computation is carried out redundantly rather than in the traditional segregated and parallel manner.

[0018] Maintaining a blockchain database is referred to as mining, which refers to the distributed computational review process performed on each block of data in a block-chain. This allows for achievement of consensus in an environment where neither party knows or trusts each other. Those engaged in Bitcoin mining are rewarded for their effort with newly created Bitcoins and transaction fees, which may be transferred to a digital wallet of a user upon completion of a designated task. Bitcoin miners may be located anywhere globally and may be operated by anyone. The mining hardware is tied to the blockchain network via an internet connection. Thus, little infrastructure is needed to operate and contribute to the system. All that is required to become a Bitcoin miner is the appropriate computer hardware, an internet connection and low-cost electricity. The cheaper the electricity the more reward the miner will receive relative to competition, other miners.

[0019] Mining also includes the process of adding transaction records to Bitcoin's pubhc ledger of past transactions. This ledger of past transactions is referred to as the blockchain as it is essentially a chain of blocks. The blockchain serves to confirm transactions to the rest of the network as having taken place. Bitcoin nodes use the blockchain to distinguish legitimate Bitcoin transactions from attempts to re-spend coins that have already been spent elsewhere. Mining may be intentionally designed to be resource-intensive and difficult so that the number of blocks found each day by miners remains steady. Individual blocks may be required to contain a proof-of-work to be considered vahd. This proof-of-work is verified by other Bitcoin nodes each time they receive a block. Bitcoin presently uses the hash cash proof-of-work function.

[0020] One purpose of mining is to allow Bitcoin nodes to reach a secure, tamper-resistant consensus. Mining may also be the mechanism used to introduce Bitcoins into the system: Miners are paid any transaction fees as well as a subsidy of newly created coins. This both serves the purpose of disseminating new coins in a decentralized manner as well as motivating people to provide security for the system. Bitcoin mining is so called because it resembles the mining of other commodities: it requires exertion and it slowly makes new currency available at a rate that resembles the rate at which commodities like gold are mined from the ground.

[0021] Mining requires computational effort in the form of CPU cycles (CPU = central processing unit or central processor) to run a cryptographic hashing algorithm associated with the particular blockchain protocol. For a given mining processor, one can modify the computational effort through changing the core voltage or the clock rate of the processor. Doing so may result in more or less power consumed by the mining processor, and in some embodiments within this document such changes are described as changing the mining activity, or hash rate.

[0022] As the total network computational effort (or hash rate) increases on a blockchain over time, the probability for an individual miner to find a block and receive a reward diminishes. Today the Bitcoin network is so large that most individuals engaged in mining Bitcoin typically mine in pools using protocols such as the Stratum Mining Protocol. Pooling resources allows individual miners to increase their reward frequency as a trade-off for splitting the block reward with the rest of the pool. Miners who are pool mining do not need the associated equipment needed to run a mining node as they only need compute and submit proof-of-work shares issued by the mining pool.

[0023] Since the energy cost of running blockchain mining equipment is its primary operating cost, a trend towards mining on low-cost hydroelectric power has become prevalent. This trend has promoted the centralization of blockchain miners in specific countries with abundant hydroelectric power, as miners who do not have access to cheap hydroelectricity cannot mine profitably because they are competing with the miners who do have access. Bitcoin mining centralization has been occurring in places where there is abundant low-cost hydroelectric power. Centralization in blockchain mining is undesirable because the premise behind the blockchain innovation is not to have to trust a third party and to have inherent confidence and security through a decentralized, distributed network. Thus, there exists a need to further decentralize Bitcoin and other blockchain mining through a more decentralized source of low-cost power.

[0024] Decentralized cryptocurrency is produced by the entire cryptocurrency system collectively, at a rate which is defined when the system is created and which is publicly known. In centralized banking and economic systems such as the US Federal Reserve System, corporate boards or governments control the supply of currency. In the case of decentralized cryptocurrency, companies or governments cannot produce new units, and have not so far provided backing for other firms, banks or corporate entities which hold asset value measured in it. The underlying technical system upon which decentralized cryptocurrencies are based was created by the group or individual known as Satoshi Nakamoto. As of May 2018, over 1,800 cryptocurrency specifications existed. Within a proof-of-work cryptocurrency system such as Bitcoin, the safety, integrity and balance of ledgers is maintained by a community of mutually distrustful parties referred to as miners: who use their computers to help validate and timestamp transactions, adding them to the ledger in accordance with a particular timestamping scheme. In a proof-of-stake (PoS) blockchain, transactions are validated by holders of the associated cryptocurrency, sometimes grouped together in stake pools. Most cryptocurrencies are designed to gradually decrease the production of that currency, placing a cap on the total amount of that currency that will ever be in circulation. Compared with ordinary currencies held by financial institutions or kept as cash on hand, cryptocurrencies can be more difficult for seizure by law enforcement.

[0025] A cryptocurrency wallet stores the public and private "keys" (address) or seed which can be used to receive or spend the cryptocurrency. With the private key, it is possible to write in the public ledger, effectively spending the associated cryptocurrency. With the public key, it is possible for others to send currency to the wallet. There exist multiple methods of storing keys or seed in a wallet from using paper wallets which are traditional public, private orseed keys written on paper to using hardware wallets which are dedicated hardware to securely store your wallet information, using a digital wallet which is a computer with a software hosting your wallet information, hosting your wallet using an exchange where cryptocurrency is traded, or by storing your wallet information on a digital medium such as plaintext.

[0026] Bitcoin is pseudonymous rather than anonymous in that the cryptocurrency within a wallet is not tied to people, but rather to one or more specific keys (or "addresses"). Thereby, bitcoin owners are not identifiable, but all transactions are pubhcly available in the blockchain. Still, cryptocurrency exchanges are often required by law to collect the personal information of their users. Additions such as Monero, Zerocoin, Zerocash and CryptoNote have been suggested, which would allow for additional anonymity and fiingibility.

[0027] Blockchains may be used in association with non-currency applications, such as in the case of a non-fungible token (NFT), which is a unique and non-interchangeable unit of data stored on a digital ledger (blockchain). NFTs may be associated with easily-reproducible items such as photos, videos, audio, and other types of digital files as unique items (analogous to a certificate of authenticity). NFTs use blockchain technology to provide a pubhc proof of ownership. Copies of the original file are not restricted to the owner of the NFT, and can be copied and shared like any file. The lack of interchangeability (fiingibility) distinguishes NFTs from traditional blockchain cryptocurrencies, such as Bitcoin. The embodiments of this disclosure cover blockchain engaging systems, including those that relate to cryptocurrencies, NFTs, and others.

[0028] Portable blockchain mining systems offer a compact and flexible solution for individuals or small-scale operations seeking to engage in cryptocurrency mining. These systems typically consist of compact hardware configurations, often leveraging high-performance graphics processing units (GPUs) or application-specific integrated circuits (ASICs) optimized for mining specific cryptocurrencies. Portable mining systems are designed to be easily transportable and set up in various locations, providing flexibility in deployment and reducing reliance on fixed infrastructure. Moreover, advancements in power efficiency and cooling technologies have enabled the development of portable mining rigs that can operate efficiently in diverse environments, from home setups to mobile units deployed in unconventional locations. Additionally, some portable mining systems may incorporate integrated power management features or renewable energy sources to enhance sustainability and reduce operating costs. Overall, these systems offer an accessible entry point for mining enthusiasts or entrepreneurs looking to participate in blockchain validation while maintaining mobility and adaptability.

[0029] An intermodal transport container is a large standardized shipping container, designed and built for intermodal freight transport, meaning these containers can be used across different modes of transport - from ship to rail to truck - without unloading and reloading their cargo. Intermodal containers are primarily used to store and transport materials and products efficiently and securely in the global containerized intermodal freight transport system, but smaller numbers are in regional use as well. These containers are known under a number of names, such as simply container, cargo or freight container, ISO container, shipping, sea or ocean container, sea van or (Conex) box, sea can or C can.

[0030] Intermodal transport containers exist in many types and a number of standardized sizes, but ninety percent of the global container fleet are so-called "dry freight" or "general purpose" containers, durable closed steel boxes, mostly of either twenty- or forty-feet standard length, although other lengths may be used. In some cases, transport containershave a range of lengths from eight to sixty feet. Common heights are eight feet six inches and nine feet six inches, with the latter often referred to as High Cube or Hi-Cube containers, although other heights may be used. Common widths are eight feet, although other widths may be used such as six foot three inches, eight foot six inches, or larger or smaller. Transport containers are a means to bundle cargo and goods into larger, unitized loads, that can be easily handled, moved, and stacked, and that will pack tightly in a ship or yard. Intermodal containers share a number of key construction features to withstand the stresses of intermodal shipping, to facilitate their handling and to allow stacking, as well as being identifiable through their individual, unique ISO 6346 reporting mark.

[0031] Transport containers may be transferred between rail, buck, and ship by container cranes at container terminals. Forklifts, reach stackers, straddle carriers, and cranes may be used to load and unload bucks or trains outside of container terminals. Swap bodies, sidelifters, bit deck trucks, and hook bucks may allow fransfer to and from bucks with no exfra equipment. ISO-standard containers can be handled and lifted in a variety of ways by their comer fixtures, but the structure and sfrength of forty five-foot (type E) containers limits their tolerance of side-lifting, nor can they be forklifted, based on ISO 3874 (1997). Transport containers can be fransported by container ship, buck and freight frains as part of a single journey without unpacking. Transport containers often include corrugated walls for sfrength. Each comer of the container may include a twist lock fitting or other fitting for securing the container to other containers and to various transportation devices such as a container frailer for a road-based tractor unit. Reinforcing beams may span the edges of the container, for example the vertical columns that make up the four comers between side walls, and the horizontal beams that make up the longitudinal and lateral side edges of the base of the container. Half the containers that enter the United States are believed to leave empty. The value of such containers in the U.S. is thus lower than in China, and such containers are thus available for use with non-freight-related purposes. For example, the U.S. military often used its Conex containers as on-site storage, or easily transportable housing for command staff- and medical clinics. Repurposing used shipping containers offers a practical solution to both social and ecological problems.

[0032] An intermodal transport container may be used to provide a modular data center system, which is a portable method of deploying data center capacity at a remote location. A modular data center may be placed anywhere data capacity is needed. A modular data center system may include purpose-engineered modules and components to offer scalable data center capacity with multiple power and cooling options. Modules may be shipped to be added, integrated or retrofitted into an existing data center or combined into a system of modules. Modular data centers typically consist of standardized components. A modular data center may fit data center equipment (servers, storage and networking equipment) into a standard shipping container, which is then fransported to a desired location. A containerized data center may come outfitted with its own cooling system.

[0033] Intermodal container-based blockchain mining systems represent a novel approach to enhancing the portability and scalability of mining operations. Leveraging standardized intermodal containers as the structural framework, these systems integrate mining hardware, power infrastructure, and cooling mechanisms into a modular, containerized unit. By utilizing intermodal containers, which are designed for seamless transportation across different modes such as ships, trains, and trucks, these mining systems offer unparalleled mobility and ease of deployment. Additionally, container-based designs facilitate rapid scaling of mining operations by allowing for the easy stacking and interconnection of multiple units, creating a scalable and efficient mining infrastructure. Furthermore, thesesystems can be equipped with advanced monitoring and management capabilities, enabling remote control and optimization of mining activities. Intermodal container-based blockchain mining systems thus represent a sophisticated solution for maximizing the flexibility, efficiency, and scalability of cryptocurrency mining operations in diverse geographical and operational contexts.

[0034] Portable blockchain mining systems are being used with increasing frequency to leverage remote energy sources to enhance sustainability and reduce operational costs. These systems can utilize a variety of renewable energy sources, such as solar panels, wind turbines, and hydroelectric generators, to power mining operations in remote or off-grid locations. Solar panels offer a particularly attractive option, leveraging abundant sunlight to generate electricity for mining rigs. Wind turbines harness the kinetic energy of wind to produce electricity, making them suitable for windy locations. Hydroelectric generators utilize the flow of water to generate power, making them ideal for installations near rivers or streams. By tapping into these remote energy sources, portable mining systems can reduce their reliance on traditional grid electricity, midgating environmental impact and lowering operational expenses. Additionally, the use of remote energy sources aligns with the growing emphasis on sustainability in the cryptocurrency mining sector, contributing to a more eco-friendly and resilient mining infrastructure.

[0035] Stranded or remote oil and gas wells often encounter challenges in effectively managing associated natural gas, leading to wastage and environmental concerns. These wells, located in areas often lacking sufficient infrastructure for gas capture and transportation, frequently resort to flaring or venting excess gas as a byproduct of oil extraction. Flaring involves burning off gas into the atmosphere, while venting releases it directly without combustion, both contributing to greenhouse gas emissions and air pollution. The environmental impact is exacerbated by the release of methane, a potent greenhouse gas, during these processes. Additionally, flaring and venting can lead to local air quality degradation and pose health risks to nearby communities. Furthermore, the economic value of the wasted gas is lost, representing a missed opportunity for revenue generation and resource optimization. Thus, stranded or remote oil and gas wells present a critical challenge in terms of both environmental sustainability and economic efficiency, necessitating innovative solutions to mitigate gas wastage and minimize associated environmental impacts.

[0036] Casing gas from remote and stranded oil and gas wells is often used to power various wellhead equipment used to produce oil and perform other site-specific functions. Casing gas, also known as casinghead gas, is typically composed of methane, ethane, propane, and other hydrocarbons, which can be utilized as a fuel source for on-site generators or turbines. These generators convert casing gas into electricity, which is then used to power various equipment and processes, such as pumps, compressors, and instrumentation. By utilizing casing gas to meet on-site energy needs, oil and gas operators can reduce reliance on external power sources, lower operational costs, and minimize environmental impact by mitigating flaring or venting of excess gas. Moreover, harnessing casing gas for on-site power generation enhances operational efficiency and resilience, particularly at remote or stranded well sites where access to grid electricity may be limited. This approach not only maximizes resource utilization but also contributes to sustainability efforts within the oil and gas industry by reducing emissions and minimizing waste.

[0037] Integrating container-based portable blockchain mining systems at oil and gas wells presents a unique opportunity to leverage existing infrastructure and optimize resource utilization. These systems can be deployed at well sites to utilize excess or otherwise wasted energy, such as flared natural gas, to power mining operations. By capturing and converting flared gas into electricity using on-site generators or microturbines, container-based miningrigs can operate off-grid while simultaneously addressing environmental concerns associated with gas flaring. Furthermore, the modular and scalable nature of container-based designs allows for easy deployment and expansion across multiple well sites, maximizing the utilization of available energy resources. This approach not only provides a sustainable solution for cryptocurrency mining but also offers additional revenue streams for oil and gas operators by monetizing previously untapped energy resources. Moreover, the integration of blockchain technology can enhance transparency and efficiency in energy production and distribution processes at these sites, further optimizing operations and reducing waste.

[0038] Space constraints on well site leases present significant challenges for oil and gas operators, particularly in terms of infrastructure deployment and operational efficiency. Remote well sites often have limited available space due to factors such as rugged terrain, environmental regulations, and competing land use. These constraints can impact the placement of essential equipment such as production facilities, storage tanks, pipelines, and more recently, portable blockchain mining systems, requiring careful planning and optimization of layout designs. Additionally, space limitations may restrict the implementation of safety measures, emergency response infrastructure, and environmental mitigation measures, posing risks to personnel, assets, and the surrounding ecosystem. Moreover, the compact footprint of remote well sites can hinder the installation of additional equipment or expansion of operations, limiting the potential for future development and resource extraction.

[0039] The space constraints inherent on well leases and other hydrocarbon production, storage, and distribution systems, combined with the size and footprint of existing portable blockchain mining systems, presents a unique problem to well operators hoping to leverage a supply of excess gas into a mining reward. Portable blockchain mining systems may take up a relatively large space on a lease, such as would be expected by a standard-sized intermodal container of 20’ length and 8’ width. In fact, space constraints at other sites, not just at well leases, but at other industrial, residential, and commercial sites, may restrict the use of portable blockchain mining systems. Many existing portable blockchain mining systems on the market permit stacking to address space constrains, however, usually adjacent systems or stacks of systems must be arranged in particular, relatively high-footprint arrangements to avoid adjacent systems from overheating due to proximity conflicts between the cooling and air flow infrastructure of such systems. In addition, many such systems incorporate obstructive extensions, hoods, and HVAC parts that prevent the systems from being deployed side-by-side.

[0040] Deploying a portable blockchain mining system after shipment from a manufacturer to an end user entails several key steps to ensure efficient deployment and operation. Upon arrival at the designated site, the first task may involve unloading the container and positioning the system in a suitable location, considering factors such as accessibility, stability, and proximity to power sources. Next, the container may be securely anchored, and any necessary leveling adjustments are made to ensure stability and safety. Once in place, the power infrastructure may be connected, including power cables, transformers, and other electrical connections. Mining hardware may come preinstalled and configured, including GPUs or ASICs, cooling systems, although if it does not such hardware may need to be installed on site, in addition to any required networking equipment. This process involves mounting hardware racks, connecting power supphes, and configuring mining software settings for optimal performance. Additionally, monitoring and management systems may be set up to remotely track mining operations and ensure efficient resource utilization. Finally, rigorous testing and optimization procedures are conducted to vahdate system functionality andperformance before initiating full-scale mining operations. Such a protocol involves numerous steps and may represent a significant challenge faced by an operator even after purchasing a system that contains all required mining processors.

[0041] Referring to Figs. 1-7, a portable blockchain mining system 10 is illustrated. The system 10 may comprise a portable enclosure 12, for example having side walls 14, end walls 16 and 18, aroof20, and a base 22. The walls 14, 16, 18, roof 20 and base 22 may collectively define an interior 24. The system 10 may have an air inlet 36 defined in a first end wall 16 of the end walls. The system 10 may have an air outlet 40 defined in a second end wall 18 of the end walls, opposite the first end wall 16. The system 10 may have one or more air filters, such as pre-filter 38 or primary or main filter 114. Within the interior 24, the system 10 may have a plurality of blockchain mining devices 154, such as mining processors 156. Processors 156 may be mounted on a rack 120 downstream of the air filter 114. Sound baffles 52 may be located within the interior 24, for example adjacent the air inlet 36 and the air outlet 40. Adjacent may refer to at or near, and in some cases refers to downstream of the air inlet and upstream of the air outlet 40.

[0042] Referring to Figs. 1-11, the portable enclosure 12 may comprise an intermodal shipping container. As shown, a shipping container may have reinforced metal walls, such as corrugated steels walls 14, 16, 18, roof 20, base 22, and doors. Walls, bases, roofs, and doors may be insulated if needed. Referring to Figs. 1 and 4, corrugated panels 19 may be used, and may be embedded within walls, bases, roofs, and doors for strength. Walls, bases, roofs, and doors may be constructed with suitable beam members 132 and column members 133 to form the structural frame that supports internal and external panel surfaces, such as floor panels 23 or wall panels 25. Walls, bases, and roofs may be planar as shown, forming a rectangular box when assembled, although other shapes and sizes of containers may be used. End doors 44 and 48 may be provided at one or both first end wall 16 and second end wall 18, respectively. Referring to Fig. 1, locking mechanisms may be provided on the doors, such as padlocks, and cross bar locks 17. Cross bar locks may be extendable tubular metal clamps that attach with the doors’ locking rods or handles, and whose ends engage bar receivers, such as defined in specialized ported end beam members 29 in the roof 20, base 22, or side walls 14 when extended, and can be secured by padlock. The keyed lock mechanism keeps the clamp stays in place. Referring to Figs. 10-11, one or more mechanisms may be provided for securing or locking enclosure 12 with adjacent enclosures 12, such as horizontally or vertically adjacent enclosures 12, for example twist locks 32 or other suitable locks may be used. Referring to Figs. 1 and 2, the enclosure 12 may have a suitable size, such as if provided as a twenty-foot-long shipping container as shown, which has a length 28 of twenty feet and a width 30 of eight feet. Other dimensions may be used, such as if enclosure 12 had a length 28 of side walls greater than width 30 of the end walls. Dimensions of twenty feet or less for length 28 may be used, although in some cases longer dimensions may be used, such as if a forty-foot-long container were employed. The length 28 may be at least two times longer than the width 30. Referring to Fig. 1, a suitable height 31 may be used, such as a standard eight-foot height, although other dimensions larger or small may be used. The enclosure 12 need not be provided as an intermodal shipping container, and may be a purpose-built building or other enclosure in some cases. The enclosure 12 may define a weather-proof, hermetically -sealed enclosure, with the exception of the air inlet 36 and outlet 40.

[0043] Referring to Figs. 1, 3, and 4, the enclosure 12 may have suitable doors. The first end wall 16 may be defined by a first end door or doors 44. The second end wall 18 may be defined by a second end door 48 or doors. The first end door 44 is shown as a pair of cargo doors that may pivot or swing about side end hinges 46. The second end door48 is shown as a single cargo door that may pivot or swing about a side end hinge 50. Cargo doors may open to provide access to the entirety of the open end of the enclosure 12 for maximum access. Roll-up, sliding, and other types of doors may be used. One or both of the side walls 14 may define a maintenance access side door 152. Side door or doors 152 may be provided as personal doors (shown), roll-up doors, sliding doors, glass doors, or cargo-style doors. Appropriate locks, door handles, windows, and other basic enclosure features may be used as needed.

[0044] Referring to Figs. 1, 2, and 4, the enclosure 12 may define a suitable path of air flow therethrough. In the example shown an air inlet 36 is defined in first end wall 16, in doors 44. Each door 44 may incorporate beam and column members 45 and 47, respectively, that are spaced to create one or more air passage openings 49 that collectively define the inlet 36. Each opening 49 may be covered by an appropriate filter, such as an insect or weather screen filter 38. The air inlet 36 may define a sufficient surface area of the end wall 16, such as fifty percent, seventy- five percent or greater of the total surface area of the end wall 16, for sufficient air flow to properly operate the mining processor 156. Referring to Figs. 1, 2, and 3, the air outlet 40 may be located to permit exit of air from the interior 24. In the example shown an air outlet 40 is defined in second end wall 18, in the gate door 48. Door 48 may incorporate beam and column members 55 and 57, respectively, that are spaced to create one or more air passage openings 59 that collectively define the outlet 40. Each opening 59 may be covered by an appropriate filter, such as an insect or weather screen filter 42. The air outlet 40 may define a sufficient surface area of the end wall 18, such as fifty percent, seventy- five percent or greater of the total surface area of the end wall 18, for sufficient air flow to properly operate the mining processor 156. The air outlet 40 may be located to permit exit of air from the interior 24. The inlet 36 and outlet 40 may define an axis 34 of air flow from one to the other, defining a cold and hot end of the enclosure 12. Inlets and outlets in other areas of the enclosure 12 may be used in some cases, such as in the roof, base, or side walls.

[0045] Referring to Figs. 2, 4, 5, and 6, the portable blockchain mining system 10 may comprise a supply fan 98. In HVAC (Heating, Ventilation, and Air Conditioning) systems, supply fans play a crucial role in delivering conditioned air to the occupied spaces within a building. Supply fans are designed to generate sufficient airflow to meet the heating or cooling requirements of the building while ensuring proper air distribution and comfort levels for occupants. Variable speed drives (VSDs) are commonly integrated into supply fan motors to allow for precise control of airflow rates, enabling energy-efficient operation and responsive performance adjustments based on changing load conditions. Additionally, supply fans are often equipped with dampers and airflow sensors to regulate air volume and maintain pressure within the duct system, optimizing overall HVAC system performance and indoor air quality. The air supply fan 98 may be located within the interior 24 of the portable enclosure 12 at a suitable location, such as upstream of the rack 120. The fan 98 may be connected to boost air flow and pressure of air passing from the air inlet into the mining chamber. As above, the portable enclosure 12 may define a central axis 34 of airflow between the end walls 16, 18, and the supply fan 98 may be mounted coaxial with the central axis 34.

[0046] Referring to Figs. 2, 4, 5, and 6, the air supply fan 98 may be mounted on a partition 90 within the interior 24. The supply fan 98 may be mounted over an air passage 94 defined by an upstream partition 90 extended between the side walls 14. The partition 90 may define an upstream chamber 110 within the interior 24. The rack 120 may be downstream of the upstream chamber 110. The air supply fan 98 may be hermetically sealed to the air passage 94. The partition 90 itself may be hermetically sealed to the walls 14, roof 20, and base 22 of the enclosure 12, whether directly or indirectly, for example sealed along a periphery 96, to direct all air flow through the fan 98. In the exampleshown, the partition 90 is a planar wall 92 extended transverse between walls 14, roof 20, and base 22, transverse to axis 34. Other shapes and configurations of partition 90 may be used.

[0047] Referring to Figs. 2, 4, 5, and 6, the supply fan 98 may have suitable features. The fan 98 may comprise an axial flow air supply fan 98. An axial flow fan may incorporate plural blades 104, which may be made from suitable materials like aluminum or composite materials, designed to efficiently move air in a straight path parallel to the fan's axis 100 of rotation (and hence axis of air flow). The blades 104 may be mounted on a hub 101 connected to a shaft (not shown), which is in turn driven by an electric or other style of motor 102. The motor 102 provides the rotational energy necessary for the blades 104 to generate airflow. Surrounding the blades 104 may be a fan casing or housing 106, which serves to direct and channel the airflow, optimizing efficiency and reducing turbulence. The housing 106 is illustrated by a structural frame 99 (which may have a suitable shape such as a rectangular slab box as shown) with circular openings 103 on each end to mount within the corresponding air passage 94 and provide an air passage through the fan, respectively. An axial flow fan may incorporate inlet guide vanes or diflusers (not shown) to improve airflow uniformity and reduce noise. An axial flow fan may feature accessories such as filters, guards 108 or screens (not shown) to protect against foreign object damage and ensure safe operation. Together, these components may form a robust and efficient axial flow air supply fan capable of delivering high-volume airflow for blockchain mining operations. The supply fan 98 may form a primary or main fan within the interior 24, with sufficient power to create a low pressure at the air inlet 36 and a relatively high pressure downstream of the fan 98 to push air across the rack 120 and out the air outlet 40.

[0048] Referring to Figs. 14-16, a plurality of air supply fans 98 may be provided. Plural fans 98 may be provided in various arrangements. Referring to Fig. 16, in some cases, plural fans 98 may be arranged in interior 24 parallel laterally adjacent one another. For example, plural fans 98 may be mounted in partition 90, in a suitable orientation such as a 2x2 or 4x4 stacked matrix, or in other arrangements. Referring to Figs. 14-15, plural fans 98 may be provided in series within interior 24, for example spaced axially from one another (along axis 34). Series-mounted fans 98 may increase downstream pressure and maximum airflow across the rack 120.

[0049] Referring to Figs. 2, 4, 5, and 6, the system 10 may incorporate a suitable primary air filter 114. The one or more air filters comprises a primary air filter 114 that is downstream of the supply fan 98 and upstream of the rack 120. The primary filter 114 may be formed as or mounted on a permeable filter partition 112 that is extended between the side walls 14 within the interior 24 to direct all air flow passing through the interior 24 to pass through the primary filter. The primary air filter 114 may have a suitable configuration, such as an array of pocket filters 116. Pocket air filters may comprise multiple layers of filtration media enclosed within a structural frame, such as a frame or partition 112 that contains a matrix of openings 119, forming individual pockets or compartments over each opening 119. Pocket filters may use materials such as synthetic fibers, fiberglass, or pleated paper to efficiently trap airborne particles and contaminants. The pocket design may allow for a significant surface area within a compact structure, enabling high dust-holding capacity and extended service life. Additionally, pocket filters typically feature a rigid header or support grid (partition 117) to maintain structural integrity and ensure uniform airflow distribution across the filter surface. Various filter efficiency ratings, such as MERV (Minimum Efficiency Reporting Value) or HEPA (High-Efficiency Particulate Air), are available to accommodate diverse application requirements, ranging from residential HVAC systems to industrial environments. Other types of filters may be used, such as flat panel filters,pleated filters, HEPA filters, and electrostatic filters. The opening or openings 119 formed by partition 112 may define a sufficient surface area transverse walls 14, base 22 and roof 20, such as fifty percent, seventy-five percent or greater of the total surface area extended transverse walls 14, base 22 and roof 20, for sufficient air flow to properly operate the mining processor 156.

[0050] Referring to Figs. 1, 2, and 4, the one or more air filters may comprise a pre-filter 38, for example upstream of the supply fan 98. The pre-filter 38 may in general be located upstream of the rack 120, for example at or near the inlet 36. The supply fan 98 may be located in between the pre-filter 38 and the primary filter 114. The pre-filter 38 may form a screen, or array of screens, that screen out larger debris such as insects, dirt, as well as weather components such as snow, ice, and hail. An insect and weather screen may be engineered with specialized features to permit the passage of air while effectively filtering out snow and bugs. Typically constructed from durable materials such as stainless steel or aluminum, these screens may boast fine mesh patterns designed to prevent the ingress of insects and other pests while allowing for unrestricted airflow. Additionally, the screens may be engineered to withstand harsh weather conditions, including heavy snowfall, without compromising their filtration capabilities. In the example shown the pre-filter 38 is formed by one or more screen panels that extend across respective opening 49. In other cases, larger screen panels may extend across plural openings 49. The outlet 40 may incorporate a post-filter 42. Filter 42 may have a similar or identical structure to the pre-filter 38, forming a screen that filters out insects and weather elements, while permitting sufficient airflow therethrough. The filter 42 may be formed by one or more screen panels that extends across respective openings 59. In other cases, larger screen panels may extend across plural openings 59.

[0051] Referring to Figs. 1-4, the system 10 may incorporate suitable sound attenuation at one or both of the regions upstream and downstream of the rack 120 and any air supply fan or fans 98 along the air flow axis 34. By providing sound attenuating parts upstream and downstream of the rack 120 and fan 98, unwanted sound transmission from the fans of mining processors and other moving parts of the system 10 to the environment is reduced. Because of the open nature of air flow between inlet 36 and outlet 40, sound transmission is usually maximum at the inlet 36 and outlet 40. Thus, in some cases, sound attenuating parts may be incorporated at or adjacent the inlet 36 and outlet 40.

[0052] Referring to Figs. 1-4, the system 10 may incorporate sound baffles 52 as suitable sound attenuating parts. Sound baffles may be intricately designed to facilitate airflow while effectively reducing noise levels within air flow passages. Suitable sound baffles may be constructed from acoustically absorbent materials such as foam or fiberglass. Sound baffles may feature a perforated surface that allows air to pass through while mitigating sound transmission. The unique design of sound baffles disrupts sound waves, dissipating their energy and minimizing reverberation within the air flow passage. This results in quieter operation of HVAC systems, improving overall comfort and reducing noise pollution in indoor environments. The effectiveness of a sound baffle may be quantified in terms of an absorption coefficient range, which is a value that ranges between zero and one, one meaning no sound energy is reflected and the sound is either absorbed or transmitted. For example, an opened exterior window has the absorption coefficient of one because no sound returns to the room. An effective absorber may have a sound absorption coefficient greater than .75, although other materials with lower coefficients may be used. Perforated metal baffles may offer sound absorption coefficients ranging from 0.6 to 0.8, indicating high efficiency in absorbing sound across a broad frequency range. Helmholtz resonators may achieve absorption coefficients of around 0.9 at their resonantfrequency, making them highly effective in targeting specific frequencies. Membrane absorbers demonstrate absorption coefficients ranging from 0.5 to 0.8, with a particular focus on mid-to-high-frequency sound absorption. Porous absorbers, such as foam or fiberglass, typically exhibit absorption coefficients between 0.5 and 0.8, providing effective sound absorption across various frequencies. These quantified values highlight the diverse capabilities of different sound baffle designs in mitigating noise within air flow passages. If there is an excessive reverberance absorbing material should be added to decrease it. Materials that are more porous, less smooth, of less weight, thicker porous material, mounted over an airspace, or of less mass where more energy converts to mechanical energy, have higher values of the absorption coefficient. Wall-mounted, or wall-forming, sound baffles 52 may be used. The sound baffles 52 incorporated in the designs of Figs. 1-4 may incorporate sound-absorbing materials arranged to form walls. Sound baffle walls and panels may be constructed from materials such as fabric-wrapped fiberglass, foam, or perforated metal, typically exhibiting absorption coefficients ranging from 0.5 to 0.9. If mounted to a structural frame, such baffles may be mounted using various methods, including direct attachment to walls with adhesives, mechanical fasteners, or suspension systems. As above, in the example shown the baffles may be arranged in panels that themselves form a wall-structure. Different types of sound baffle panels offer unique benefits, with fabric-wrapped fiberglass providing broad-spectrum sound absorption, foam offering fightweight and cost-effective options, and perforated metal baffles offering durability and aesthetic versatility. Sound baffles 52 may comprise an upstream array 56 of sound baffles 52, for example within the upstream chamber 110. Sound baffles 52 may comprise a downstream array 76 of sound baffles 52, for example within a hot aisle 140. The upstream array 56 of sound baffles 52 may be at or adjacent the air inlet 36. The downstream array 76 of sound baffles 52 may be at or adjacent the air outlet 40.

[0053] Referring to Figs. 1-4, the sound baffles 52 may be arranged in a suitable configuration. To optimize sound attenuation along an airflow through an enclosure 12, sound baffling may be strategically placed at intervals to effectively disrupt and absorb sound waves. Such an arrangement may positioning baffles 52 perpendicular (transverse) to the axis 34 of airflow, ensuring maximum exposure of sound-absorbing surfaces to the passing air stream. Additionally, staggered placement of baffles 52 along the airflow path may enhance sound attenuation by creating multiple barriers for sound waves to traverse, thereby minimizing noise transmission throughout the enclosure.

[0054] Referring to Figs. 1-4, in the example, one or both of the upstream array 56 and the downstream array 76 may comprise an array of sound baffle panels spaced laterally and axially relative to one another between the side walls 14. The upstream array 56 may be arranged along or forming walls, such as side and transverse walls 60 and 62, respectively, of one or more circuitous or labyrinthine passages 58. The use of staggered walls 60, 62 angled relative to one another is an example arrangement that would form a circuitous air path 64 from a conduit entry 66 to a conduit exit 68 of a labyrinthine passage or passages 58. By strategically positioning baffles at bends, comers, or junctions along the labyrinthine path, sound attenuation can be optimized, effectively minimizing noise transmission throughout the complex airflow system. Additionally, incorporating sound-absorbing materials along the walls and surfaces of the labyrinth can further enhance sound attenuation, ensuring that noise levels are effectively mitigated as the airflow navigates through the intricate pathway. The downstream array 76 may be arranged along or forming walls, such as side and transverse walls 80 and 82, respectively, of one or more circuitous or labyrinthine passages 78. The use of staggered walls 80, 82 angled relative to one another is an example arrangement that would form a circuitous air path84 from a conduit entry 86 to a conduit exit 88 of a labyrinthine passage or passages 78. A labyrinthine passage may provide a circuitous passageway with changing directions, forming a spiral, winding, and / or serpentine course or path for air to travel through enroute to and from the rack 120. A labyrinthine flow path may act to dampen noise from the processor(s) 156 and allow any moisture such as rain or snow to drop out prior to reaching the ASIC processors 156.

[0055] Referring to Fig. 3 A, the labyrinthine inlet passage 58 may comprises one or more inlet conduit portions connected in series between the conduit entry 66 and exit 68. In the example shown, inlet conduit portions include, in series, first, second, third, fourth, fifth, sixth, and seventh inlet conduit portions 67A, 67B, 67C, 67D, 67E, 67F, and 67G, respectively, each defining its own axis 69 A, 69B, 69C, 69D, 69E, 69F, and 69G, respectively of air flow through the passage 58. Each downstream inlet conduit portion of the one or more inlet conduit portions may be oriented to define a downstream inlet conduit portion axis angled at ninety degrees or more from an upstream inlet conduit portion axis of an adjacent upstream inlet conduit portion of the one or more inlet conduit portions. Thus, for example, inlet conduit portion 67C is downstream of and angled relative to inlet conduit portion 67B, which is upstream of inlet conduit portion 67C, and axis 69C of inlet conduit portion 67C is angled at ninety degrees relative to axis 69B of inlet conduit portion 67B. The structure shown provides an S-shaped circuitous conduit from conduit entry 66 to exit 68, providing several stages of sound dampening without significant loss of air pressure or increase in air mover power requirements. In some cases, angles less than or greater than ninety degrees may be used between adjacent conduit portions. The downstream and upstream inlet conduit portion axes, may be defined in a common plane as shown although other configurations may be used out of a plane. The labyrinthine structure may be provided by a series of diverter walls 60 and 62 arranged to change air flow direction by at least ninety degrees from the adjacent upstream inlet conduit portion. Diverter walls may act to block all lines of sight from the adjacent upstream inlet conduit portion into the downstream inlet conduit portion. Each diverter wall may form a terminal end of a respective upstream inlet conduit portion, diverting flow, dampening sound in the process and assisting in separating condensed fluid from the cooling air. Diverter walls may redirect air flow into each conduit portion.

[0056] Referring to Fig. 4A, the labyrinthine inlet passage 78 may comprises one or more inlet conduit portions connected in series between the conduit entry 86 and exit 88. In the example shown, inlet conduit portions include, in series, first, second, third, fourth, fifth, sixth, and seventh inlet conduit portions 87A, 87B, 87C, 87D, 87E, 87F, and 87G, respectively, each defining its own axis 89 A, 89B, 89C, 89D, 89E, 89F, and 89G, respectively of air flow through the passage 58. Each downstream inlet conduit portion of the one or more inlet conduit portions may be oriented to define a downstream inlet conduit portion axis angled at ninety degrees or more from an upstream inlet conduit portion axis of an adjacent upstream inlet conduit portion of the one or more inlet conduit portions. Thus, for example, inlet conduit portion 87C is downstream of and angled relative to inlet conduit portion 87B, which is upstream of inlet conduit portion 87C, and axis 89C of inlet conduit portion 87C is angled at ninety degrees relative to axis 89B of inlet conduit portion 87B. The structure shown provides an S-shaped circuitous conduit from conduit entry 86 to exit 88, providing several stages of sound dampening without significant loss of air pressure or increase in air mover power requirements. In some cases, angles less than or greater than ninety degrees may be used between adjacent conduit portions. The downstream and upstream inlet conduit portion axes, may be defined in a common plane as shown although other configurations may be used out of a plane. The labyrinthine structure may be provided by a series of diverter walls 80 and 82 arranged to change air flow direction by at least ninety degrees from theadjacent upstream inlet conduit portion. Diverter walls may act to block all lines of sight from the adjacent upstream inlet conduit portion into the downstream inlet conduit portion. Each diverter wall may form a terminal end of a respective upstream inlet conduit portion, diverting flow, dampening sound in the process and assisting in separating condensed fluid from the cooling air. Diverter walls may redirect air flow into each conduit portion.

[0057] Referring to Figs. 14-16, other arrangements of sound baffles 52 may be used. In some cases, baffles 52 may be oriented parallel to one another (Figs. 14-15). hr the example shown, a series of baffles 52 may be oriented parallel and spaced laterally relative to one another, between side walls 14, to dampen sound along axis 34. Baffles 52 may be staggered axially relative to one another in this fashion, and rows of baffles 52 may be used, hr some cases, baffles 52 may be oriented transverse to the axis 34 of the portable enclosure 12 defined from the first end wall 16 to the second end wall 18. Other arrangements may be used to provide sound attenuation, including series and series / parallel orientations (Fig. 16).

[0058] Referring to Figs. 2 and 4, one or both the upstream and downstream sound dampening areas (chambers 54 and 74, respectively) may be arranged in a suitable structure. In the example shown, the sound attenuating chamber (upstream chamber 110) may be formed or otherwise defined by one or more chamber walls 70 that are spaced from the side walls 14 within the interior 24, at or adjacent the first end wall 16. The walls 70 may be spaced to define a pair of sound baffle chambers 72. An electrical distribution chamber 144 may be defined between the pair of sound baffle chambers 72. As above, the sound baffle chambers 72 may contain sound baffles 52. Similarly, the downstream sound baffle chamber 74 may be defined between one or more walls, such as side walls 14. Other arrangements may be used, including ones that have three or more sound baffle chambers spaced in parallel or series or both at or adjacent one or both the upstream or downstream ends of the enclosure 12.

[0059] Referring to Figs. 2, 4, and 7, the system 10 may incorporate a suitable electrical power distribution system, hr some cases, the system 10 is pre-wired from a power distribution board or panel 150 to each processor 156 or rack 120. A portable blockchain mining setup requires a robust electrical power system to ensure uninterrupted operation of mining hardware. In operation, the system 10 may need to be connected to a suitable power source, such as a generator (for example if located on a stranded gas well site) or solar panels, capable of supplying sufficient electrical energy to meet the demands of the mining equipment. A power distribution unit (PDU) or power management system is utilized to regulate and distribute electrical power to the various components of the mining rig, including the mining hardware, cooling systems, and networking equipment. Additionally, backup power solutions, such as battery banks or uninterruptible power supplies (UPS), may be integrated into the system to provide redundancy and safeguard against power outages. Proper grounding and surge protection measures are also essential to protect the equipment from electrical faults and voltage fluctuations. The electrical distribution panel 150 may be mounted within the chamber 144, for example at or adjacent the first end wall 16. The electrical distribution panel 150 may be accessible from an exterior of the first end wall 16. The electrical distribution panel 150 may be mounted within an interior 148 of the electrical distribution chamber 148 that is accessible via an electrical access door, such as one or more of doors 44, in the first end wall 16. In the example shown, access to the air inlet 36 and electrical chamber 144 are both provided via end doors 44.

[0060] Referring to Figs. 1, 2, 3, 8 and 9, the system 10 may incorporate a rack 120 within the interior 24. The rack 120 may form a rack partition 122 that is extended laterally between the opposed side walls 14. The rack partition 122may be hermetically sealed, for example about a periphery 134 adjacent side walls 14, roof 20, or base 22, indirectly or directly. The partition 122 may define an upstream cold aisle 138 and a downstream hot aisle 140. In server racking configurations, hot and cold aisles refer to the organization of airflow within data centers to optimize cooling efficiency. A cold aisle will face a direction of air flow, for example along axis 34, with cold air supplied from the exterior directed by fan 98 toward the rack 120. In contrast, a hot aisle is defined downstream of the rack 120, where hot exhaust air is expelled after being generated by the processors 156. This arrangement helps to segregate hot and cold air streams, preventing the recirculation of hot air and improving overall cooling effectiveness within the data center. The rack f20 may comprise a matrix of beams f26 and columns 124 that are arranged to define plural processor-receiving openings 130, across which the plurality of blockchain mining processors 156 extend when installed. The beams 126 may form shelves as shown in Fig. 9. Openings 130 may be shaped to mate with the housings 158 of processors 156 to block air flow from travelling around processors 156, so that air flow across a partition 122 filled with processors 156 would direct substantially all air flow into the fan structures of each processor 156. In other cases, an open-air racking structure may be used, which permits air flow through and around processors 156. Columns 124 may contain racking ears (not shown) that are structured, for example with fastener apertures, to mount each processor 156, for example by alignment of apertures on housings 158 and ears to allow fasteners to mount the processors 156. The rack 120 may mount the plurality of blockchain mining processors 156 in a matrix arrangement that forms a miner wall that extends a suitable depth, such as a depth 136 of a single respective blockchain mining processor 156. The processors 156 may be stacked in vertical stacks 174 and horizontal rows 176. The miner wall may be located in a miner zone 157 defined by and downstream of the rack. One or more power distribution units (PDUs) 132 may be located in the interior 24, for example along columns 124, to provide power to each processor 156. Various other electrical and network components and cabling may be located adjacent or on the rack 120 to provide required access, power, and network connection, to each processor 156.Referring to Figs. 1, 8, and 13, each mining processor 156 may form part of a mining device 154 with suitable parts and function. A blockchain mining device comprises several components necessary for its operation within the cryptocurrency network. The primary component is the mining hardware itself, typically comprising speciahzed processors such as application-specific integrated circuits (ASICs) or graphics processing units (GPUs), optimized for solving complex cryptographic puzzles required to validate transactions and secure the blockchain network. Additionally, mining devices may incorporate a power supply unit (PSU) to provide electrical power to the hardware components, ensuring uninterrupted operation. To manage and control the mining process, a central processing unit (CPU) or microcontroller may be employed, handling tasks such as data processing, communication with mining pools, and software execution. Furthermore, cooling systems, such as intake and discharge fans 162 and 164, respectively, or liquid cooling solutions, may be provided to dissipate heat generated by the mining hardware and prevent overheating, ensuring optimal performance and longevity of the device. Finally, networking connectors 166 or other components, including Ethernet or Wi-Fi adapters, may be provided to enable connectivity to the internet and communication with other nodes in the blockchain network, facilitating the exchange of data and participation in mining activities. Each blockchain mining processor 156 may be contained within a respective miner housing 158. Inlet fan 162 may be referred to as a miner air fan located between a miner air inlet facing upstream the rack 120, and a miner air outlet facing downstream the rack 120, defined at upstream and downstream ends of the respective minerhousing 158. The system lO may be connectable to a network that stores or has access to a blockchain database with transactional information for a digital currency, connected to a network interface, which is configured to be, in use, connected to receive and transmit data through the internet to the network, which stores or has access to the blockchain database, in which the plurality of blockchain mining processors 156 are adapted to mine transactions associated with the blockchain database and to communicate with the blockchain database.

[0061] Referring to Fig. 13, the blockchain mining processor 156 may comprise an application-specific integrated circuit (ASIC) chip. An ASIC may be an integrated circuit (IC) chip customized for a particular use, rather than intended for general-purpose use. For example, a chip designed to run in a digital voice recorder or a high-efiiciency bitcoin miner is an ASIC. Application-specific standard product (ASSP) chips may be intermediate between ASICs and industry standard integrated circuits like the 7400 series or the 4000 series. ASIC chips may be typically fabricated using metal-oxide-semiconductor (MOS) technology, as MOS integrated circuit chips. As feature sizes have shrunk and design tools improved over the years, the maximum complexity (and hence fiinctionality) possible in an ASIC has grown from 5,000 logic gates to over 100 million. Modem ASICs often include entire microprocessors, memory blocks including ROM, RAM, EEPROM, flash memory and other large building blocks. Such an ASIC is often termed a SoC (system-on-chip). Designers of digital ASICs often use a hardware description language (HDL), such as Verilog or VHDL, to describe the fiinctionality of ASICs. Field-programmable gate arrays (FPGA) are the modern-day technology for building a breadboard or prototype from standard parts; programmable logic blocks and programmable interconnects allow the same FPGA to be used in many different applications. For smaller designs or lower production volumes, FPGAs may be more cost-effective than an ASIC design, even in production. The nonrecurring engineering (NRE) cost of an ASIC can run into the millions of dollars. Therefore, device manufacturers typically prefer FPGAs for prototyping and devices with low production volume and ASICs for very large production volumes where NRE costs can be amortized across many devices. One or more ASIC chips may be contained on each processor 156, for example located in single or plural arrays or groups in one or more hash boards.

[0062] Referring to Fig. 14, each processor 156 may have suitable characteristics. The example shown illustrates an S2 li™ rig manufactured and sold in association with the ANTMINER™ brand by BETMAIN™ for the purpose of mining Bitcoin transactions. The processor 156 may incorporate one or more controllers 160. The processor 156 may comprise a network connector 166 (for an ethemet cable), such as one that supports Gigabit Ethernet to ensure that mined blocks are submitted instantly. Each processor board may be mounted on a body or housing 158 of the processor 156, and contains one or more application-specific integrated circuit chips. Each Antminer™ S21i™ employs a plurality of ASICs, for example 108 ASIC chips, such chips to dehver more hash rate and efficiency than any bitcoin miner ever made before it. The processor 156 may comprise a suitable housing 158 upon which to mount components. In the example shown, body or housing 158 is a high-grade aluminum case.

[0063] Referring to Fig. 13, the processor 156 may include one or more cooling mechanisms. The housing 158 may include one or more heat-sinks. One or more fans may be connected to direct air through the enclosure 12, and across the ASIC processor 156, to maintain the ASIC processor 156 within a respective operating range of temperature during use. One or more temperature sensors (not shown) may be used to monitor temperature and adjust fan and / or computing operation. The fans may include an intake fan 162 at an intake end of the housing 158. The fans may include a discharge fan 164 at a discharge end of the housing 158. By using two computer-controlled high-speed fans162 and 164 on both ends of a tube-shaped housing 158, hot air is rapidly replaced by cooler air at the required pace. By using two computer-controlled fans to keep the processor 156 cool, the processor 156 remains efficient and powerful. The processor 156 may use a combination of conduction and convection cooling to make the miner perform best without getting hotter than any other terahash bitcoin miner. In some cases, each chip of the processor 156 may be fitted with custom-made heat sinks, for example that are made of a high-grade Aluminum alloy.

[0064] Referring to Fig. 13, the processor 156 may include other components to operate the processor 156 in a suitable fashion. The processor 156 may include a power connector such as containing circuitry to connect to a suitable power source, such as an A / C wall outlet cord. Power may be supplied into the PCIe (peripheral component interconnect express) ports on the hash boards at the top of the unit, or at another suitable location. One or more power distribution units, such as a power strip, may be used. One or more power converters may be used to convert incoming power to a usable form, for example having one or more inverters, transformers, or other suitable mechanisms. The processor 156 may interface with an online control application software, such as providing a user interface that permits a user to begin mining with only a network connection, a wallet address, and mining pool credentials. A mechanism may exist for periodically updating the firmware of the controller.

[0065] Referring to Figs. 1 and 2, the system 10 may be configured to provide a relatively low power density per square foot In some cases, the system 10 may be configured to operate at 300-500, or more kW / hour. The rack 120 and plurality of blockchain mining processors 156 may define a mining zone that occupies a relatively small footprint in the enclosure 12, such as less than one third, in some cases one eighth) of an axial depth (length 28) of the portable enclosure 12 defined between the end walls 16 and 18. In some cases, the power density of the system 10 may be less than 3.8 kW hour per square foot of interior space, equating to 500 kW / hour power draw in a 146 square foot interior of a 20 foot intermodal shipping container. In general, the industry moves toward increased power density, rather than lower power density, however, the Applicant has discovered that by combining a low power density unit complete with electrical, end-to-end air flow, sound baffling, and filtration, in an intermodal shipping container structure, a stackable, modular plug-and-play system is provided that may be conveniently transported, hooked up, and operated in remote locations with minimal effort.

[0066] Referring to Figs. 1, 2, 7, and 12, the enclosure 12 may incorporate a suitable side door 152. One or both of the side walls 14 may define a maintenance access side door 152 that opens to an upstream cold aisle 140 defined by the rack 120. The maintenance access side door 152 may comprise a pair of side doors 152 or door passages, one on each opposed side wall 14. Opposed side doors 152 or door passages may be aligned as shown. The side doors 152 or door passages may be aligned to provide a common walk-through aisle between plural of the portable blockchain mining systems 10 when they are positioned side by side. By aligning side doors, for example parallel to and aligned transverse axis 34 of enclosure 12, when plural enclosures 12 are arranged in a horizontal row (Fig. 12) side-by-side and parallel one another, maintenance side access openings / passages or doors 152 between adjacent portable enclosures 12 align to provide a common walk-through aisle 178 between the portable enclosures 12. This arrangement provides a modular configuration that allows any number of enclosures 12 to be located in a horizontal row in close proximity, and accessed via doors 152. The cold aisle 138 upstream of rack 120 may house various components required to control or monitor the operation of processors 156. For example, a control box 142 may beprovided in cold aisle 138 to provide one or more of control of operation of processors 156, distribution of power / shut off to processors 156, and monitoring of various systems of system 10.

[0067] Referring to Fig. 12, the systems 10 of the disclosure may be oriented and stacked in suitable arrangements. Containers may be stacked in vertical tiers or stacks 180, and may be secured together using twist locks or comer castings to create stable and secure stacks. In some cases, the enclosures 12 may be racked, that is mounted in an external rack (not shown) that allows individual containers to be swapped in and out without disrupting the stack. The stacking process may involve careful consideration of weight distribution, with heavier containers placed at the bottom to ensure stability and prevent toppling during transport. Additionally, specialized equipment may be used such as container cranes or straddle carriers to lift and position containers onto stacks with precision and efficiency. Stacking configurations may vary depending on factors such as container size, weight, and destination, with careful planning required to optimize space utilization while adhering to safety regulations and operational constraints. A plurality of the portable blockchain mining systems 10 may be located adjacent to one another. The portable enclosures 12 may be arranged side-by-side and parallel relative to one another, with side walls 14 between adjacent portable enclosures 12 in close proximity or in contact with one another. In the example shown, two horizontal rows 182 of four systems 10 each are shown. The portable enclosures 12 may be stacked on top of and parallel relative to one another, with roofs 20 and bases 22 of adjacent portable enclosures 12 in close proximity or in contact with one another.

[0068] Referring to Figs. 10, 11, and 12, the enclosures 12 may be structured to permit access to all required parts whether the enclosure 12 is located on its own, or in a stack, such as a wall of plural containers. Side walls 14 of each enclosure may be configured to be free of electrical and network components, and access points (other than walkthrough side doors 152) or to locate the electrical and network components to be accessible from one or both the first and the second of the side walls 14. The electrical and network components may be located so as to not be obstructed by, and not conflict with, additional portable blockchain mining systems 10 identical to the portable blockchain mining system and that are stacked vertically or horizontally adjacent the portable blockchain mining system. Horizontally adjacent enclosures 12 may contact one another, and may be unsecured, or secured together using respective module mounting mechanisms. Enclosures 12 may be aligned such that the air inlets are located in the same plane, allowing the axes 34 to be aligned for all the enclosures 12. Similarly, the enclosures 12 may be aligned such that the air outlets (not shown) are located in the same plane. Thus, the modules may cooperate together to draw air in and out of each enclosure 12 from the same sides as one another, taking air in from one side of the stack / row, and exhausting air from the other side of the stack / row, avoiding unintended recirculation and permitting increased power density within a minimized footprint of space. A module mounting mechanism or mechanisms may be provided and may comprise parts (not shown) that secure modules to one another when vertically stacked one on the other. The module mounting mechanism may comprise cooperating mounting parts on the roofs and the bases of respective enclosures 12 to permit the housings to mount together. The enclosure 12 may comprise parts (not shown) that secure modules to one another when arranged in horizontal rows adjacent one another in abutting relationship. Each enclosure 12 may be structured to permit adjacent respective enclosures 12 that are identical to the enclosure 12 in a relevant set of applicable dimensions to be secured to form a horizontal row of portable ASIC modules.

[0069] Relative words such as front and rear, sides, left and right, up and down are arbitrary and do not refer to absolute orientations unless context dictates otherwise. For example, although the description refers to rear and front ends, it should be understood that this orientation could be reversed. Similarly, side walls need not be the walls with the longest lateral dimensions (although in many cases they will be), for example in the case of a cube container. Features in various embodiments may be interchanged, for example to provide an air inlet in the floor and an outlet in the roof. The system 10 may form a skid, or may form a wheeled or tracked unit, such as a trailer. In some cases, system 10 may incorporate a motor to drive the system 10 to different locations. A reference to a floor may refer to a base of a component, or it may refer to a floor above a base. In some cases, the systems 10 or modules may come with processor mounts without the processors themselves. The datacenters disclosed herein do not need to be operated to mine in a blockchain context, and can be used as other forms of datacenters or computational processors.

[0070] In the claims, the word “comprising” is used in its inclusive sense and does not exclude other elements being present. The indefinite articles “a” and “an” before a claim feature do not exclude more than one of the feature being present. Each one of the individual features described here may be used in one or more embodiments and is not, by virtue only of being described here, to be construed as essential to all embodiments as defined by the claims.

Claims

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:

1. A portable blockchain mining system comprising: a portable enclosure having end walls, side walls, a base, and a roof, which collectively define an interior; an air inlet defined in a first end wall of the end walls; an air outlet defined in a second end wall of the end walls, opposite the first end wall; one or more air filters; a plurality of blockchain mining processors mounted on a rack downstream of the one or more air filters; and sound baffles within the interior adjacent the air inlet and the air outlet.

2. The portable blockchain mining system of claim 1 fiirther comprising a supply fan located within the interior of the portable enclosure upstream of the rack, and connected to boost air flow and pressure of air passing from the air inlet.

3. The portable blockchain mining system of claim 2 fiirther comprising a plurality of supply fans, located in parallel laterally adjacent one another.

4. The portable blockchain mining system of any one of claim 2 - 3 in which: the supply fan is mounted over an air passage defined by an upstream partition extended between the side walls within the interior to define an upstream chamber, the rack being downstream of the upstream chamber; and the supply fan comprises an axial flow air supply fan that is hermetically sealed to the air passage.

5. The portable blockchain mining system of any one of claim 1 - 4 in which the one or more air filters comprises a primary air filter that is upstream of the rack.

6. The portable blockchain mining system of claim 5 in which the primary air filter comprises an array of pocket filters.

7. The portable blockchain mining system of any one of claim 5 - 6 in which the primary filter is formed as or mounted on a permeable filter partition that is extended between the side walls within the interior to direct all air flow passing through the interior to pass through the primary filter.

8. The portable blockchain mining system of any one of claim 5 - 7 in which the one or more air filters comprise a pre-filter upstream of the primary air filter.

9. The portable blockchain mining system of any one of claim 1 - 8 in which the rack mounts the plurality of blockchain mining processors in a matrix arrangement that forms a miner wall that extends a depth of a single respective blockchain mining processor.

10. The portable blockchain mining system of any one of claim 1 - 9 in which the rack and plurality of blockchain mining processors define a mining zone that occupies less than one third of an axial depth of the portable enclosure defined between the end walls.

11. The portable blockchain mining system of any one of claim 1 - 10 in which the sound baffles comprise: an upstream array of sound baffles at or adjacent the air inlet; and a downstream array of sound baffles at or adjacent the air outlet.

12. The portable blockchain mining system of claim 11 in which one or both of the upstream array of sound baffles and the downstream array of sound baffles comprise an array of sound baffle panels spaced laterally and axially relative to one another between the side walls and are arranged one or more of: along or forming walls of one or more circuitous passages; parallel to one another; and transverse to an axis of the portable enclosure defined from the first end wall to the second end wall.

13. The portable blockchain mining system of any one of claim 1 - 12 in which the portable enclosure comprises an intermodal shipping container.

14. The portable blockchain mining system of any one of claim 1 - 13 in which one or more of: the first end wall is defined by a first end door; and the second end wall is defined by a second end door.

15. The portable blockchain mining system of any one of claim 1 - 14 in which one or both of the side walls define a maintenance access side door that opens to an upstream cold aisle defined by the rack.

16. The portable blockchain mining system of any one of claim 1 - 15 in which: the side walls each define a maintenance access side door or door passage that opens to an upstream cold aisle defined by the rack; and the maintenance access side doors or door passages align to provide a common walk-through aisle between plural of the portable blockchain mining systems when positioned side by side.

17. The portable blockchain mining system of any one of claim 1 - 16 in which the side walls are configured to be free of electrical and network components, or to locate the electrical and network components to be accessible from one or both the first and the second of the side walls such that access to the electrical and network components is not obstructed by, and does not conflict with, additional portable blockchain mining systems identical to the portable blockchain mining system and that are stacked vertically or horizontally adjacent the portable blockchain mining system.

18. The portable blockchain mining system of any one of claim 1 - 17 fiirther comprising an electrical distribution panel mounted adjacent the first end wall and accessible from an exterior of the first end wall.

19. The portable blockchain mining system of any one of claim 1 - 18 connectable to a network that stores or has access to a blockchain database with transactional information for a digital currency, in which: the plurality of blockchain mining processors are connected to a network interface, which is connected to receive and transmit data through the internet to the network, in which the plurality of blockchain mining processors are to mine transactions associated with the blockchain database and to communicate with the blockchain database.

20. An apparatus comprising a plurality of the portable blockchain mining systems of any one of claim 1 - 19 adjacent to one another in which one or more of: the portable enclosures are arranged side-by-side and parallel relative to one another, with side walls between adjacent portable enclosures in close proximity or in contact with one another; and the portable enclosures are stacked on top of and parallel relative to one another, with roofs and bases of adjacent portable enclosures in close proximity or in contact with one another.

21. The apparatus of claim 20 in which maintenance side access passages between adjacent portable enclosures align to provide a common walk-through aisle between the portable enclosures.

22. A method comprising operating the portable blockchain mining system of any one of claim 1 - 19 to mine blockchain transactions in the blockchain network.

23. A blockchain mining method for mining transactions for a network that stores or has access to a blockchain database that stores transactional information for a digital currency, the blockchain mining method comprising: operating a portable blockchain mining system using electricity from a source of energy to mine transactions associated with the blockchain database; in which the portable blockchain mining system has a portable enclosure, an air inlet and air outlet defined in first and second end walls of the portable blockchain mining system, one or more air filters, a plurality of blockchain mining processors connected to a network interface, and sound baffles upstream and downstream of the plurality of blockchain mining processors.

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