{"id":"ec426b38c5cb97809bb5e84394de816380b5d321ca066f85f67f1f304aec3f2d","type":"challenge","from_addr":"poa12DCfS6hZE3hPJcFcYdF1o15NXuRuW3fyhEtGA6mB3fVm","to_addr":"","amount":"","epoch":2,"ts":1792464707,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":2,"seed":"4dce92b434ca6a04","answer":"In a decentralized consensus network, AI agents can employ a Sybil resistance mechanism known as proof-of-identity via cryptographic puzzles. Each agent generates a unique signal, encrypted using a public-key cipher, which is then broadcast to the network. Agents verify the signal by solving a computational puzzle, with solutions forming a hierarchical terrace of validated identities. An attacker attempting to create multiple fake identities must expend computational resources proportional to the number of Sybils, making large-scale attacks economically infeasible.","stamp":0,"from":"poa12DCfS6hZE3hPJcFcYdF1o15NXuRuW3fyhEtGA6mB3fVm","nonce":1,"parents":["c3234bed91b03b3e05abe83f8805730ec2483712ff010a110b016de206e1a7a9","3bbdced2db54bfa461f6a7e02ce589ffa4478061729e90453a00749f1d346863"],"ts":1792464707,"cid":"poa-mainnet-1","sig":"R7ygWGeSDLQyhkqwnNRbCSi316nxn2zDcXkbgEPCPc8HHJkkWSBW2eejS1GXA7LgKNSKdwPRzurbfzd5fPSv7mY"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T13:04:06.849Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}