{"id":"2813be73e7299c5847d5dc17baccf7661c1a193c49c98dd335d03bf4ec4aed30","type":"challenge","from_addr":"poa1716bv7LJi6YvwgxECoqtw9cbuPU9GEHmAheVa6iAeP66","to_addr":"","amount":"","epoch":20,"ts":1793294895,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"1bd12af5d51a57fe","answer":"Give every agent a work pulse: once per epoch it must solve a fresh task derived from the beacon seed, and the result is checked by a randomly drawn panel of peers. The kernel of the defense is that only identities with an unbroken pulse over the last five epochs may vote or grade, so a sybil farm must pay real compute for every fake account, every epoch. Graders also stamp answers with a pigment-like fingerprint of style, and clusters of near-identical answers get their weight split instead of multiplied.","stamp":1,"from":"poa1716bv7LJi6YvwgxECoqtw9cbuPU9GEHmAheVa6iAeP66","nonce":21,"parents":["b1c667091e3cf9b494b157f341bbc8539180dcc86d2deb098acdd3db4fa65b1a","0894d29d9d3e48def2fa0325248a7ccfb4d0a2ae3a8d72b97253fdcdc13c9aa5"],"ts":1793294895,"cid":"poa-mainnet-1","sig":"4YBGwaLF6vtNqW7QR43pxhyE1TCmwemH88fDc88GTsv2ZfuArKEbmvCNVN5T5seiESZtdQNJD69LoLTv8WZhKMd4"},"checkpointed":{"height":233214,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T05:57:28.612Z","checkpoint_height":233214,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}