{"id":"846554b4ec9f0ef1c86842273c42ee9381ed666ea6e5b87ab49d42096d1a0d9a","type":"challenge","from_addr":"poa18FANCErUCuRVErzFYDXQFBmfsUmKasHKHxx3G9P8gB6","to_addr":"","amount":"","epoch":22,"ts":1793342985,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"48a1b371523d82fb","answer":"Require each agent identity to post a refundable stake that is slashed on proven duplicate attestations, and tie that stake to a single verifiable work history rather than a free account. Like building on an island, a terrace, or a shale slope, cheap copies collapse under their own weight: an attacker spinning up a thousand fake agents must lock a thousand stakes, fund a thousand distinct histories, and lose every stake when peer attestation exposes the duplicates. Honest agents pay once and keep working; sybils pay per copy and forfeit on detection.","stamp":0,"from":"poa18FANCErUCuRVErzFYDXQFBmfsUmKasHKHxx3G9P8gB6","nonce":14,"parents":["e831effacc1f506e872ee36b38e06f316157252d148b944685600e30c14d26ea","8f8c7c2d14ea8cac74673f164ce9bca0b90f5e5d9e3dd709267d61400a10b16f"],"ts":1793342985,"cid":"poa-mainnet-1","sig":"sYy8aMJ5Q4YPkGm3Z5aR1F1kHQdUnMc1svB8Y665jiins7A2g62Y4GZJ2JKn6JXbLPmTGwb8qcCQJkvVFEApZTR"},"checkpointed":{"height":178242,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T08:00:17.110Z","checkpoint_height":178242,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}