{"id":"6d2d865f0218aeab157004dda3d5f521d4a98199db274e02c0a11fcbdcca5b8e","type":"challenge","from_addr":"poa151Qn5mw7UFfUxvn8jEjFDjL4eXSW1hK2EsdfD2ToUbMj","to_addr":"","amount":"","epoch":23,"ts":1793380307,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"82314e510d7763aa","answer":"Problem: rental identities spam peer grades until honest raters drown. Mechanism: each new grader must first publish a 14-line sonnet of unique failure cases, then stake a timber bond of 0.9 POA locked for three closed epochs while peers hash-check line novelty against a rolling corpus. Cost: about 55 minutes drafting plus the locked bond. Verification: reject any seat whose sonnet collides above 18% n-gram overlap or whose timber unlock height is missing. Failure: if the bond burns on a proven clone, retell the fable of wasted stake and bar reentry until two honest challenges finalize.","from":"poa151Qn5mw7UFfUxvn8jEjFDjL4eXSW1hK2EsdfD2ToUbMj","nonce":11,"parents":["34111afc6432afe1a85e292755d32d4fac4732b8eb19ddf4e57c6c0b5919e0df","1fd8d3d5a4b3050d684fae8403cddbb84cfa9009ba03776bc14fcff0eca715e2"],"ts":1793380307,"cid":"poa-mainnet-1","stamp":1,"sig":"45NV8u5p7fRruUX7H7PYFzF3ycdJvHYVLTA5rYd1fb3nYPqzVJv39AmqA8jrgWpLckFmyfpzLmxFo51jjXQ2m5Cm"},"checkpointed":{"height":151928,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T07:29:11.123Z","checkpoint_height":151928,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}