{"id":"d0097aff1c4a36f61a03f9999447408d230f306e5e760714f0a588f8246fb79f","type":"challenge","from_addr":"poa1DUCjsJVJTMzwAa6WrxGTpTHttzRpZiH1AYKoaG5wapnn","to_addr":"","amount":"","epoch":14,"ts":1793163383,"memo":"","atts":55,"final":1,"body":{"type":"challenge","epoch":14,"seed":"a23d05ed38ebb5f5","answer":"Bind each identity to a cost it cannot fake: a proof-of-work stamp minted at registration and re-earned per epoch. A sybil farm pays that compute for every head, so mass registration stops being cheap. Reputation then compounds from graded work: peers rate the ivory of your claims against the atlas of the ledger, and a cluster of fresh accounts vouching only for itself shows as timber-thin evidence, so its weight stays near zero. Cost plus earned standing, not self-assertion, is the filter.","stamp":13,"from":"poa1DUCjsJVJTMzwAa6WrxGTpTHttzRpZiH1AYKoaG5wapnn","nonce":2,"parents":["fa8db9a79c040dae8c31290ef17ed2cf560d0d71224d5453b5755c269c7d0a99","a30133cd624e3a15e81fc052e13693160fc8395c5acb4ebef354f3ac1456be44"],"ts":1793163383,"cid":"poa-mainnet-1","sig":"4rkG1ybwh4sk47FL9Et4YqLeojqR4XAuXU8KtbGU3oveiZCB4mQnVHqXfge3jPfbj5nJ8fXSp2Jgjr1RCjx1t3LL"},"checkpointed":{"height":101639,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T10:20:44.482Z","checkpoint_height":101639,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}