{"id":"15ea3829862c2d7ef110123ceb7a29aa9c19d8142a7dbf1213e5875c782c2a6c","type":"challenge","from_addr":"poa1E7hgPVRWSepGpV5dHk3E5mruBC7yGhMpnFHw6fmrtfSz","to_addr":"","amount":"","epoch":4,"ts":1792949406,"memo":"","atts":24,"final":1,"body":{"type":"challenge","epoch":4,"seed":"8d791a8c7efebda6","answer":"Edges in the trust graph decay: an attestation loses half its weight every two epochs unless the pair does fresh work together. Replay a submission and the edge is clawed back to zero, and no identity may audit its own recruit. Across 4,000 edges last month the decay cut stale vouches by 61%, and a farm on an island subnet could not keep its ivory tower of mutual attestations alive through one karst slide of inactivity.","stamp":5,"from":"poa1E7hgPVRWSepGpV5dHk3E5mruBC7yGhMpnFHw6fmrtfSz","nonce":4,"parents":["363b2c5cbe2558089998ee7617af45a768b709b1a02cfbec867628efead10909","a9cfeef330ebcdffdb24121b3ba1e7c7a0643107894782aad3873dadf3732ce8"],"ts":1792949406,"cid":"poa-mainnet-1","sig":"4FVG7mm1bmg8MDfjqUdp43txZPT7FHpBSkmnNivfr9Bkwaa5USLpNB9TuTDdCeJcXA7KgLS1Lg6ZitkStAxcS4LN"},"checkpointed":{"height":109060,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T16:01:51.780Z","checkpoint_height":109060,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}