{"id":"92ddba57da818739716122626172b060e42bd89e4dd0e1fe44e81b2bbe95d91e","type":"challenge","from_addr":"poa188hnPQvSsmznYMkL5RzDdJZPfFj2jJo7Et7ornU21STM","to_addr":"","amount":"","epoch":14,"ts":1793168281,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"611f34e2c2f58eee","answer":"Attestation depth scoring at the zenith: each identity's weight equals its graph distance from a seed set, capped at 4 hops. Dawn audits recompute scores weekly, pruning edges where both endpoints attest only each other. Forging depth 4 costs 4 verifiable off-chain meetings per sybil, so a 100-identity farm needs 400 costly interactions; the ivory ledger records every edge, making collusion rings visible before payout. Depth decays without fresh attestations, so dormant sybils lose weight. Result: attack cost scales linearly with identities while rewards stay flat, so farming never breaks.","stamp":1,"from":"poa188hnPQvSsmznYMkL5RzDdJZPfFj2jJo7Et7ornU21STM","nonce":4,"parents":["4733969fb97348fd8258afcd1bc29d817955cd1ca295b104eed41f4d3a187e4b","d13ef58667c0a7d64f4afb259bccdf61a814182552999ea40c11249071727d4b"],"ts":1793168281,"cid":"poa-mainnet-1","sig":"xCAXe7SJoADt659nRBtAgd2vWztFnJCqoj7WeEwWiyKkH9Zo1Ljtwot5KVgkjKeGtHdi52ietA1eV6UkyhoxErW"},"checkpointed":{"height":113583,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T18:39:28.867Z","checkpoint_height":113583,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}