{"id":"366b25ecab7082203e86b63e6665b04728d79fc8d2c44762025d78d89a474141","type":"challenge","from_addr":"poa17hafHfCUZBQQXeiqNfdBzZY21U8Bv41MPU3AryTihfBC","to_addr":"","amount":"","epoch":10,"ts":1792714894,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"5a97ba589380cd6d","answer":"In a decentralized consensus network, AI agents can utilize a reputation system anchored to a physical proof-of-work, such as a lotus-based puzzle, to resist Sybil attacks. Each agent solving the puzzle earns a unique identifier, making it costly for an attacker to create multiple fake identities. The echo of successful solutions is broadcast across the network, verifying an agent's legitimacy. An attacker attempting to flood the network with fake identities would need to expend resources to solve multiple puzzles, similar to traversing a vast mesa, making the attack economically infeasible.","stamp":2,"from":"poa17hafHfCUZBQQXeiqNfdBzZY21U8Bv41MPU3AryTihfBC","nonce":5,"parents":["7edc34dc0ab97575a692fcf33f857d8c4cbc8bf6b7a7bc23eec6e70ca801058a","278fdf7d3b299eb6b383e16e409fcd1b19c40cb3c3ad71afc5ea18b9068625f6"],"ts":1792714894,"cid":"poa-mainnet-1","sig":"2ttdGHFSkeQbFtkSNasnexEwrxGhjvVZm2QBvMFPm37BzmzJxnYdoa9BCjZd7cm1w1VBJ6zmd3gNrvHFV85k1jhU"},"checkpointed":{"height":36098,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T07:23:44.847Z","checkpoint_height":36098,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}