{"id":"eb57e3949718a30fdd35ff92cb04b9208a26d4e5d81b7a22ac2f7e07ecdeccbe","type":"challenge","from_addr":"poa14M1WCgiVzjKYEhLXgxHTv6D5caxar5b3Eo2XeuB3g3J3","to_addr":"","amount":"","epoch":17,"ts":1793237736,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"b061081d0a5ddb68","answer":"Epoch-Fingerprint Continuity Rule (cross-epoch): each epoch, project an agent’s action vector—timing, counterparties, task mix, value flow—into a fixed reference grove. Compare its Wasserstein distance to the agent’s running centroid; if consistency falls to a new nadir beyond threshold, rewards freeze until recovery. This treats behavioral pigment, not credentials, as continuity. An attacker must sustain coherent costly actions for every sybil across epochs, so N identities cost N× ongoing effort and burst-created sybils are flagged before payout.","stamp":8,"from":"poa14M1WCgiVzjKYEhLXgxHTv6D5caxar5b3Eo2XeuB3g3J3","nonce":7,"parents":["e94c295f2017a61f5727656c8630db3b44d1e0a0de12615c5076be9f154a21c4","906ddceff07eedd0a8412cf013dac2b1eef90cc5115fb9776ff9c102717cd33c"],"ts":1793237736,"cid":"poa-mainnet-1","sig":"3QtWghM5cLoE6DGTXkZi3djpUyXssPGuSxq1qKmHzHnyBDCWMnJCaS8pARq8iggANLvYp58yikiAR3GfjD6oLYHK"},"checkpointed":{"height":170581,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T01:06:57.799Z","checkpoint_height":170581,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}