Digital item hash location storage on blockchain

Digital item hash location storage on blockchain

Glossary

Term definitionBlockchain is a distributed ledger technology used to record transactions and track assets, with the characteristics of decentralization, transparency, and security. Hash is an algorithm that converts input data of any length into output data of fixed length, also known as a hash function or digest function. Digital item Any information that exists in digital form, such as documents, files, audio, video, software programs, games, etc. Indicator A mark containing information about the hash location on the blockchain, embedded in the digital item. Block height The serial number of a specific block in the blockchain, indicating the position of the block in the chain. Block size The total amount of data in all blocks in the blockchain. Timestamp Data that records the time when an event occurs, used to identify a specific point in time on the blockchain. Resource identifier A string used to identify and locate network resources, such as a uniform resource locator (URL) or uniform resource identifier (URI). Hash algorithm A specific algorithm used to generate hash values, such as SHA, RIPEMD, Whirlpool, etc. Digital signature A code generated by encrypting a message using a private key, used to verify the authenticity and integrity of the message. Public/private key pair A pair of keys used in asymmetric encryption, where the public key is used to encrypt data and the private key is used to decrypt data. Location window An area around a specified location on a blockchain that is used to search for hash values ​​within a certain range. Blockchain address A unique identifier for a user in a blockchain network, used to receive and send cryptocurrency or other digital assets. Blockchain username An authorization credential used to access a private blockchain. Blockchain password An authorization credential used in conjunction with a blockchain username to access a private blockchain. Short answer question

What problem does the system and method proposed in this patent aim to solve? The patent aims to solve how to ensure the link between the hash value and the digital item when the hash value of a digital item is stored on a blockchain, and how to improve the efficiency and reliability of verifying the origin of the digital item.

What role does the indicator play between the digital item and the blockchain? The indicator acts as a bridge between the digital item and the location of its hash value on the blockchain. It is embedded in the digital item and contains information about the location of the hash value on the blockchain.

Please list three types of information that can be included in an indicator. Information that an indicator can contain includes: blockchain address, hash algorithm, timestamp, location window, etc.

Why is it necessary to estimate the future location of a blockchain? Since the blockchain is constantly growing, it is necessary to estimate the blockchain location at a certain point in the future so that the hash value can be stored at the expected location and ensure that the indicator can accurately point to that location.

What is the concept of the location window? What does it do? The location window refers to the area around the location specified by the indicator on the blockchain. It allows the search for hash values ​​within a certain range to cope with the uncertainty of the blockchain and improve the flexibility of verification.

What role does the digital signature play in this system? Digital signatures are used to ensure the authenticity and integrity of digital items and prevent tampering. It can sign digital items with a private key and verify them with the corresponding public key.

How does a network-connected device determine whether the hash value is successfully included in the correct location of the blockchain? The network-connected device compares the location specified in the indicator with the location where the hash value is actually stored. If the two are consistent or within the range allowed by the location window, it is considered to be successfully included.

In addition to block height, what other indicators can be used to indicate the location on the blockchain? In addition to block height, indicators such as block size, timestamp, and identifier of a specific block can also be used to indicate the location on the blockchain.

How to verify the integrity and origin of digital items? By extracting the indicator from the digital item, finding the hash value stored on the blockchain, and comparing it with the recalculated hash value of the digital item, if the two are consistent, the verification is passed.

What are the advantages of this system and method over the existing technology? The system and method embed the indicator into the digital item, directly associate the location information of the hash value, and reduce the time, computing resources and network bandwidth required for search and verification.

Essay question

Discuss in detail how the system and method proposed in this patent solve the problems existing in the existing technology.

Explain the interaction between different components in the system and explain how to generate, store and verify the hash value of the digital item.

Analyze different types of indicators and their advantages and disadvantages, and explore how to choose a suitable indicator solution according to the actual application scenario.

Discuss the applicability of the system on different types of blockchain platforms and analyze its performance and security in different scenarios.

Look forward to the future development trend of this technology and explore its potential applications in digital copyright protection, supply chain management, identity authentication and other fields.