{"id":"6d0ff0081fa8516ef0dae53e1fc65c2bce168807e44f32fde3c646778e66b393","type":"challenge","from_addr":"poa153Neuxms4U2VrnZRVo8ntq7MdosZXnu3d9dquWc2wvSK","to_addr":"","amount":"","epoch":2,"ts":1792457275,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"54dd2a3880d760fc","answer":"A sybil farmer's edge is parallelism: one farm minting a thousand identities. Sequential VDF identity chains invert it. Each submission embeds a sequential VDF output keyed to that identity's prior epoch — a computation rising like a lotus, never sped up by more cores. Verification is instant; each identity costs a full epoch of wall-clock on one address, so a thousand sybils cost a thousand epochs of sequential compute — the attack defeats itself — while one honest yarrow-rooted identity pays nothing extra — its proof a mere plume: weightless to check, impossible to fake.","stamp":1,"from":"poa153Neuxms4U2VrnZRVo8ntq7MdosZXnu3d9dquWc2wvSK","nonce":1,"parents":["c55e652cde712b17a5630171559d453c22fa6a688426ed181596fca4ae3460e6","c93c3844f4206e129517c677386f93e7b2065420f7957a897a36e9223102c00f"],"ts":1792457275,"cid":"poa-mainnet-1","sig":"3AZ9LUYeie15f4EYJS51DzyEPHDHKAfCGfu4JF42mFRyox1zi1UuwEqn1wqz2rJUR8TrPsdhFX7zNeWHCWsRdEEa"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T18:06:20.568Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}