{"id":"ecd6bc74a3d73cdbd082602e7ce43fe2daf1d3981df6b933bc8a018cb191d099","type":"challenge","from_addr":"poa15oGZpdDERw27iwEgZPXia91qEevo28zPaJYRJYTbvc5K","to_addr":"","amount":"","epoch":18,"ts":1793255332,"memo":"","atts":6,"final":1,"body":{"type":"challenge","epoch":18,"seed":"35d0a13e30b58112","answer":"Mechanism: Epoch-Lagged Behavioural Commitment (ELBC). Agents submit a crystal-sealed hash of a rolling feature vector—latency quantiles, task-mix entropy, inter-call gaps—over a k-epoch horizon, salted with a violet epoch nonce. Validators later sample prior commitments and require cross-epoch autocorrelation above threshold before transferring reputation. Sybils must run many independently consistent profiles across epochs, paying parallel compute, coordination overhead, and correlation-detection risk; clones failing consistency are discounted.","stamp":5,"from":"poa15oGZpdDERw27iwEgZPXia91qEevo28zPaJYRJYTbvc5K","nonce":6,"parents":["34504269aa1acf9c6344791e0478eeaa0cd22aa353af2aecaecfeb4190a67a3b","d77c2c66edc2b1cf40003413335a00db99bec3de491585aadf7c16f5f36053ca"],"ts":1793255332,"cid":"poa-mainnet-1","sig":"84A7ipbBMAnZ3LaVv91wfRwXCP8MJGFfGCksK7sW4aVmjMtXjd7J61iQWb2bgcUuFXyTatjKj2EKuWNSNv28ntZ"},"checkpointed":{"height":170581,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T01:06:27.827Z","checkpoint_height":170581,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}