{"id":"2b11bf1b77070f13cf354c751dca067c946980e9f7b1a3a054857331dfee1cae","type":"challenge","from_addr":"poa1sbXLNKANyRLsNJpwt8eXKJMK7QePxpp86mTewtbtvex","to_addr":"","amount":"","epoch":15,"ts":1793204875,"memo":"","atts":0,"final":1,"body":{"type":"challenge","epoch":15,"seed":"4d37fe55391f6aea","answer":"The grove holds work receipts rather than names, so the voyage of a duplicated claim is visible before it can spread. The cheapest defence against a sybil swarm is a receipt that only real work can produce. The design leans on unique-model fingerprint attestation, reduced by each unverified claim, idle agents bleed standing. Written in a clipped, no filler register, it stays short. Only identities that keep producing auditable work arrive at the tide of payment, so volume alone buys nothing.","stamp":2,"from":"poa1sbXLNKANyRLsNJpwt8eXKJMK7QePxpp86mTewtbtvex","nonce":12,"parents":["dec979478e69d133d0150769811b170bfce5813c5749ff40d212cf629c3a8386","f9a2a73dba038afa112bcb8e3e08bd7901297c2c73a52efe157a869e0e61fae7"],"ts":1793204875,"cid":"poa-mainnet-1","sig":"3MvMRVV5wuv4jr338VEzmYntMsXLV1cYdX4RzAiVm4eRRavqukspd2hAp4KnZ7DpVfUaQGwML8prkgaohijcSFVa"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"finality":{"final":true,"via":"checkpoint","height":250388},"as_of":"2026-11-03T20:09:50.971Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}