Digital heritage recording device using physical long-term storage media

Abstract

This invention provides a digital legacy recording device that can be configured at a low cost, addresses the complexities of inheriting digital assets that may arise unexpectedly, and enables long-term recording and maintenance of digital assets using physical long-term storage media. [Solution] The digital legacy recording device using a physical long-term storage medium records information by hand on the surfaces of opposing metal plates 1 and 2 with a scriber pen, and provides physical protection in the card-sized storage space of the frame 3 that holds the information in place. It responds immediately to the need for inheritance risk management and provides tamper detection and difficulty of destructive access by sealing with an adhesive that contains fragments that are difficult to reproduce in a unique way, using inexpensive means, and maintains security through the freedom of configuration and the originality of the sealing.

Description

Technical Field

[0004] , , , , ,

[0001] The present invention relates to a digital heritage recording device for physically recording digital heritage information for long-term storage.

Background Art

[0002] Conventionally, there has been known a technique for physically recording information related to a private key (seed phrase) of a cryptographic asset or digital heritage on a metal medium in order to protect it from electromagnetic failures and fires. For example, there are commercially available devices that punch in characters one by one on a metal plate such as stainless steel or titanium using a dedicated engraving machine (punch set), or that hold a number of metal tiles with pre-engraved characters combined in a rail-shaped housing (see, for example, Non-Patent Document 1). However, these conventional physical recording devices have a complicated and heavy structure for the housing to fix and protect the character tiles, and the manufacturing cost is extremely high because the number of parts is large. In addition, those that require a dedicated engraving tool or hammer work have a high hurdle for the general individual to perform the recording work easily and in a quiet environment. Furthermore, with existing mechanical character formation means, it is impossible to leave the handwriting of the recorder as it is, and it is difficult to impart the added value of "proof of authenticity by the autograph of the person himself / herself", which is important in applications such as a will.

Prior Art Documents

Non-Patent Documents

[0003]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] This invention was made to solve the conventional problems described above, and aims to provide a digital legacy recording device that can be manufactured inexpensively with an extremely simple structure, does not require any special tools, and can store a variety of expandable information media such as My Number cards, card-sized NFC hardware wallets, and paper media in a space the size of a credit card, while recording additional information such as handwritten signatures and master passwords, and can handle complex situations such as the inheritance of digital legacies, by allowing the user to adjust the difficulty of unauthorized access by others through tamper detection that they themselves have configured. [Means for solving the problem]

[0005] To solve the above problems, the digital legacy recording device of the present invention is characterized by using many existing products while achieving complex security access to others according to the user's needs, by combining metal substrates 1 and 2 having a hardness that allows the surface to be physically deformed by an existing scriber pen, a metal frame 3 that forms a space large enough to hold a credit card when sandwiched between them, four existing screws for fixing them, the necessary amount of adhesives 4, 5, 6, and 7 mixed with fragments in a configuration unique to the user to achieve both strong sealing and tamper prevention, and padlocks 8 and 9 or disposable numbered tamper-evident tags 10 which can be introduced according to the user's needs. [Effects of the Invention]

[0006] According to this invention, the following effects can be achieved.

[0007] Firstly, since the device can be assembled using existing parts, with the exception of essential components such as metal substrates 1 and 2 on which the user records the most important information, including the master password and how to enter it, by hand using a scriber pen, and a metal frame 3 sandwiched between them to form the space, manufacturing costs can be kept extremely low, making it possible to provide an inexpensive recording device that can be easily introduced by general consumers. If necessary, a handwritten signature can be included, and the signature and the handwriting of the master password can be used to verify the user's identity in the event of inheritance.

[0008] Secondly, the space can store higher-density information media as needed, such as My Number cards, card-sized NFC hardware wallets, and paper documents, and can be used to protect them from damage or loss as long as the user can maintain their health. In this case, the information written on metal substrates 1 and 2 can be modified by removing the screws and engraving new information, allowing for changes to the master password and its format. By tightening screws at only two diagonally opposite points, and providing a clearance on one of these points through which the screw passes into the metal frame 3, the metal frame 3 is fixed only on the other side, making access to the stored information media extremely easy, while accessing the master password requires removing the screws, thus maintaining reasonable security. Furthermore, existing special screws that are difficult for others to remove can be used.

[0009] Thirdly, when a user has minor health concerns, they can use padlocks 8 and 9 or disposable numbered tamper-evident tags 10 to implement a configuration that is more difficult for others to access, at a complexity desired by the user. Access can be made possible for the user, but virtually impossible for others, including family members, to access by non-destructive means. In the case of padlocks 8 and 9, the complexity can be increased by discarding the key and sealing the keyhole with adhesive. In the case of disposable numbered tamper-evident tags 10, the number can be shared with multiple people to mutually monitor tamper detection. Although the padlocks are screwed in at two through-holes for fixation, a synergistic effect can be achieved when using padlocks 8 or 9 and tamper-evident tags 10 together by having at least two through-holes that are not yet screwed in.

[0010] Fourthly, if the user experiences significant health concerns, including cognitive decline, they can bond the screws to the metal substrate 1 by covering the screw heads with adhesives 4, 5, 6, and 7, which contain some kind of fragment, after tightening the screws. This method, while irreproducible even for the user, enhances the detectability of tampering against non-destructive access and makes destructive access extremely difficult. Examples of fragments include metal pieces obtained by randomly coloring and cutting aluminum foil, as well as items with high forensic identifiability, such as threads from the user's favorite clothing, or even fragments of their own hair or nails that could potentially serve as DNA evidence. These can be selected according to the inheritance security desired by the user. In this case, not only can tampering detection be mutually monitored by informing multiple heirs in advance, but resistance to tampering, which involves destroying a part of the user's body, can be created through extremely inexpensive means, deterring them until a majority agree. [Brief explanation of the drawing]

[0011] [Figure 1] This is an overall perspective view showing one embodiment of the present invention. [Figure 2] This is an exploded perspective view showing one embodiment of the present invention. [Figure 3]This is a perspective view showing the final locked state due to the adhesive containing the fragments. [Figure 4] This is a perspective view showing the access restricted by a padlock. [Figure 5] This is a perspective view showing the access restriction status using disposable numbered tamper-evident tags. [Modes for carrying out the invention]

[0012] As shown in Figures 1 and 2, the digital legacy recording device according to this embodiment physically protects the stored media by having a space for storing a credit card used on a daily basis between plates arranged so that the sides on which information is written are concealed from each other. In normal use by the user, it serves as both a device for physical protection and a recording medium for concealed digital legacy. However, as shown in Figure 3, in situations where the user needs to manage inheritance risks, by using an adhesive in which fragments are mixed in with a unique pattern that even the user cannot reproduce after tightening the screws, it achieves both tamper detection and difficulty of destructive access when someone tries to access it. In addition to the originality of the adhesive itself, which solidifies into a unique shape due to its viscosity, the fragments mixed in with the existing adhesive, which is mostly semi-transparent when solidified, are typically aluminum foil, which is intentionally colored randomly with an oil-based pen and cut into random shapes by the user, and these fragments are mixed in by the user, giving it a unique originality and dramatically improving tamper detection.

[0013] In addition to the security expandability that allows users to select and use existing special screws, it maximizes the expandability of tamper detection by utilizing the diversity of objects that can be used as fragments in the adhesive. This not only appeals to the current trend of abundant options for DIY methods, but also benefits the user by utilizing the psychology of others. The more heirs become aware of the diversity and possibilities of such fragments, from highly forensic-grade identification fragments such as threads from the user's favorite clothes when they were healthy, to fragments of their own hair or nails that could potentially serve as DNA evidence, the more they will avoid destructive access on their own out of guilt. This can create an extremely low-cost effect of preventing destructive access until a majority of the heirs agree.

[0014] As shown in Figures 4 and 5, the wide range of intermediate security measures available can also meet the demand. Not only can inexpensive physical locks such as padlocks, combination locks, and security locks be used, but existing disposable numbered tamper-evident tags used in logistics can be employed to provide the difficulty of destructive access and tamper detection at the complexity desired by the user. By combining these means, the system can be easily restored for the user themselves, while appearing to be more difficult for others than anticipated, which can also act as a deterrent through psychological effect.

[0015] By providing an escape route only to one of the holes in the metal frame shown in Fig. 1, the device itself appears to others to be merely a physical protection case for an important card. This also utilizes the psychological effect, which is a principle of security. If the user feels there is no risk regarding inheritance, then the device actually functions only as a physical protection case. However, the value of extremely important information such as the master password written inside and its usage method is almost unknown to others until it is disassembled, and it has an appearance that doesn't seem valuable enough to be disassembled at first glance. In addition, the value of the information written by the user with a scribing pen can be made illegible so that it can only be understood by the others to whom the user truly wants to convey it. It is possible to beautifully engrave it by mechanical means, but conversely, it cannot be made inexpensive in terms of the thickness and material of the metal substrate for this purpose. By writing it by hand, it can also be a means to make the information truly intended to be conveyed illegible only for the heir who knows the user's handwriting.

[0016] As long as such a high degree of freedom contributes to security, it must be considered that the forms for implementation are extremely wide-ranging. Regarding the point that making all the implementation cases known can conversely reduce the value of this device, although it seems to conflict with the application, it should be considered a fact.

Explanation of Reference Signs

[0017] 1 Metal substrate 2 Metal substrate 3 Metal frame 4 Adhesive 5 Adhesive 6 Adhesive 7 Adhesive <了 8 Padlock 9 Padlock 10 Disposable numbered anti-tampering tag

Claims

[Claim 1] A digital heritage recording device using a physical long-term storage medium, characterized by having a structure that, when fixed by the screws, allows for sealing with a fragment-containing adhesive 4, adhesive 5, adhesive 6, adhesive 7 applied to the metal substrate 1 so as to cover the screw heads, and access restriction with a padlock 8, padlock 9, or disposable numbered tamper-evident tag 10, depending on the user's needs.

Images