Product cancel-after-verification method and device, mobile terminal and storage medium
A technology for products and prizes, applied in the field of information processing, can solve problems such as data tampering, and achieve the effect of preventing malicious changes, improving accuracy, and improving credibility
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Embodiment 1
[0055] seefigure 1 , is a flow chart of the product write-off method provided in the first embodiment of the present invention, including steps:
[0056] Step S10, if a write-off request sent by any client is received, query the target product corresponding to the write-off request;
[0057] Wherein, the product identification is stored in the write-off request, and a product query table is pre-stored locally, and the product query table stores the corresponding relationship between different product identifications and corresponding target products;
[0058] Therefore, in this step, the product identification in the write-off request is matched with the product query table, and the target product is obtained according to the matching result. Optionally, the product identification can be in the form of text, code or image further, the write-off request is transmitted in the form of voice signal, text signal or touch signal.
[0059] Step S20, query the target smart contract c...
Embodiment 2
[0077] see figure 2 , is a flow chart of the product write-off method provided in the second embodiment of the present invention, including steps:
[0078] Step S11, if a write-off request sent by any client is received, query the target product corresponding to the write-off request;
[0079] In this embodiment, when the user's confirmation instruction for the target product is received, a product consumption code is sent to the user, and the product consumption code is used to generate the write-off request;
[0080] Further, please refer to the explanation of step S10 in the first embodiment, and the explanation of this step will not be repeated here.
[0081] Step S21, obtaining the storage ID of the target product, and querying the blockchain ledger according to the storage ID;
[0082] Among them, the information of each product is stored in the corresponding blockchain ledger. Blockchain technology is essentially a "database technology with unalterable historical rec...
Embodiment 3
[0113] see image 3 , is a schematic structural diagram of the product write-off device 100 provided in the third embodiment of the present invention, including: a product query module 10, a contract query module 11, an instruction sending module 12, a key detection module 13 and a contract modification module 14, wherein:
[0114] The product query module 10 is configured to, if a write-off request is received from any client, query the target product corresponding to the write-off request.
[0115] Wherein, the product query module 10 is further configured to: when receiving the user's check and confirmation instruction for the target product, send a product consumption code to the user, and the product consumption code is used to generate the write-off request.
[0116] The contract inquiry module 11 is configured to inquire about the target smart contract corresponding to the target product, and obtain the write-off identification in the target smart contract.
[0117] Wh...
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