How does Bitcoin anchoring work? The art of 'borrowing power' in Plasma security
The security core of #Plasma is to 'borrow power' from #比特币 , rather than 'recreate' security. It is like a ship that casts the anchor of ultimate trust onto the oldest and most solid seabed of Bitcoin.
Its 'borrowing power' process revolves around two core actions:
1. Regular 'proof of deposit': Engraving state fingerprints into Bitcoin
The validators on the Plasma chain will regularly (e.g., every 20 minutes) write the encrypted summary (Merkle root) of the latest chain state into a transaction on the Bitcoin mainnet, like storing fingerprints. This is akin to stamping an irrefutable timestamp and snapshot certification on the globally recognized ledger of Bitcoin, establishing an immutable checkpoint.
2. Ultimate 'judgment': Executing justice with the Bitcoin network
This is the key to the security model. If operators on Plasma commit malfeasance (such as double spending), any observer can submit cryptographic fraud proofs to the Bitcoin network. Bitcoin miners only need to verify whether the proof itself is valid to make a direct judgment. Once fraud is established, the assets staked by the wrongdoer will be confiscated.
The essence of security logic: Through this mechanism, Plasma successfully transforms the enormous pressure of maintaining data availability and correctness into an economic constraint on its own validators. Malfeasance means facing the risk of being publicly challenged on the Bitcoin mainnet, with conclusive evidence and severe penalties.
Reflection: This is a highly pragmatic form of 'borrowing power'. It does not pursue absolute self-sufficiency, but instead, through sophisticated cryptography and economic game design, 'borrows' Bitcoin's ultimate consensus #去中心化 as its final court. For scenarios like stablecoin settlement that require certainty and extremely high trust, this 'backing by a big tree' security strategy offers a unique and powerful solution.
