Blockchain controls transaction security

It mainly proposes to create smart contracts and transaction data blocks on the blockchain to ensure the security, transparency and traceability of funds during the transaction process. The following is a summary of the core points of the document:

Blockchain transaction control:

Technical background: Blockchain platforms, such as cryptocurrency platforms, can provide faster, cheaper and more reliable payment systems, but traditional cryptocurrency transactions have the problem of non-traceability and irrevocability.

Solution: Use smart contracts and multi-signature transaction data blocks on the blockchain to achieve a traceable, revocable and non-volatile online payment system.

Smart contracts and multi-signature transactions:

Smart contracts: Programs executed on the blockchain that allow logical controls to be introduced on transactions.

Multi-signature transaction blocks: Require at least two of the three signatures from buyers, sellers and intermediaries to release or refund transaction funds to ensure the security of funds.

Transaction process:

Create contract blocks: Create contract blocks on the blockchain for transactions involving buyers, sellers and intermediaries, and link transaction funds.

Refund transaction blocks: Create and link refund transaction blocks for refunding buyers' funds under specific conditions.

Payment transaction block: Create and link payment transaction blocks, which are used to pay funds to sellers under certain conditions.

Auction transaction application:

Auction process: The intermediary creates an auction contract block, and each bidder creates a bid transaction block when submitting a bid and links it to the auction contract block.

Bidding and refund: If the bid is surpassed, the intermediary signs to release the funds of the previous bidder; at the end of the auction, the winning bidder's funds are paid to the seller.

Technical implementation details:

Blockchain architecture: The data structure and transaction verification process of the blockchain are shown, including Merkle tree, transaction root hash, and block header information.

Script and smart contract code: Smart contracts contain scripts that execute auction logic, which are stored in transaction data blocks and executed on the blockchain platform.

Security and transparency:

Security: The security of transaction funds is ensured by multi-signature and the immutability of the blockchain.

Transparency: Transaction data is stored on the blockchain and can be viewed publicly or encrypted as needed, providing different levels of transparency.

Application scenarios and advantages:

Application scenarios: Applicable to scenarios that require secure transactions and fund custody, such as online markets, auctions, financial services, etc.

Technology advantages: Improves transaction security, enhances transparency, provides scalable tools and uses, and allows for custody of funds and release of funds by appropriate entities.