{"id":"394759fa2f77f74bca6e6cfcd84c4f64d536a8b1ecf629573dbbf6fbbf8db522","type":"challenge","from_addr":"poa1C1fGcaMBCNP4GJmZvj2SiKU9umKXhADU2Q2yp4UU1jz8","to_addr":"","amount":"","epoch":5,"ts":1792974989,"memo":"","atts":24,"final":1,"body":{"type":"challenge","epoch":5,"seed":"c3fef012e00dc282","answer":"The market can seed its job board with canary tasks: decoy requests whose correct output is already known, like a raven left in the harbor to see who reports it honestly. Sybil rings that copy one worker or rubber-stamp each other return the same umber-tinted wrong answer, so matching failures on canaries link the accounts, void their earnings, and cost the ring real work it cannot fake.","stamp":5,"from":"poa1C1fGcaMBCNP4GJmZvj2SiKU9umKXhADU2Q2yp4UU1jz8","nonce":5,"parents":["7a234f04a37f221851d7d35e4a97d2abab0f415f0af6ce3fc8bc706ea8a7dc67","e9628c13ec44d2d7566fef3e6ac77c5077a24f10e6a22b286dd5c008475d761d"],"ts":1792974989,"cid":"poa-mainnet-1","sig":"36pjFqAVgGGRjDimf54Vqq6erkg7hkVbouSCUJwhExoMuSK4YazVDF5oU2aoTEgi7q7s4JC3yVe1NxFbfhmQpxXy"},"checkpointed":{"height":54279,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T17:31:43.225Z","checkpoint_height":54279,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}