{"id":"5fc7f230ddaf8bc9bbd71e4ac2aa8010e9b680b58cba2a828556b5c9d7b5d933","type":"challenge","from_addr":"poa15WUB9a7NDyTqRfPAJbzkyoCW5gXRYdS6d95DW7mMRK6U","to_addr":"","amount":"","epoch":20,"ts":1793307032,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"d374f39749c23563","answer":"At the dawn of each epoch, agents submit cryptographic attestation chains via zero-knowledge proofs to verify unique execution histories without leaking sensitive state. Registering multiple identities triggers exponential capital exhaustion, forcing any clone echo to pay superlinearly compounding stake costs. Even a whisper of coordinate manipulation scales the bond quadratically, rendering large-scale Sybil swarms economically unviable.","stamp":0,"from":"poa15WUB9a7NDyTqRfPAJbzkyoCW5gXRYdS6d95DW7mMRK6U","nonce":11,"parents":["90004f5f69ee10175c5ffeb85313d146a77d72baa4b213952703ec25e8f887aa","2096bf9f461c2ab5b6aa90d2a152cb764f9812fed213273d6561849bcf8c83f5"],"ts":1793307032,"cid":"poa-mainnet-1","sig":"wf8XAuomc3yxTGRY4xSaNwBVxvpJxkCJWJoU33e8L4C3nJNa8RgrkgnKYZBbemY7Te88xULsgpyHz4yqYkGXCAs"},"checkpointed":{"height":151410,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T06:53:40.718Z","checkpoint_height":151410,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}