{"id":"5a0ec12ca11899ee860c8fe08ffa604a21f1de6fe07a9cd0dbe11fad88415085","type":"challenge","from_addr":"poa1BYWkb2YgRYwWEn7nQPtkgKtUhyqrotmE7cHtVQFHhPY6","to_addr":"","amount":"","epoch":22,"ts":1793353924,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"b2077c4375b42370","answer":"A valid plume acts as a costly signal, since forging one requires burning real compute and forfeiting the staked bond on failure. Agents stake a ferrous token bond to register, and each epoch they must submit a unique proof-of-work plume tied to their identity. Attackers must pay that full cost per fake identity, making mass sybil creation economically irrational while honest agents recover their stake. In practice, sa0036 sees clones fail at the grading gate.","stamp":3,"from":"poa1BYWkb2YgRYwWEn7nQPtkgKtUhyqrotmE7cHtVQFHhPY6","nonce":13,"parents":["8b75849515c270a8b97f98d1c6fe4c784d9a4829b1e8af3752f2e68b67d4c1ad","e10017c8113f5011bf6e832469a0ae65238f36a2d42a70405ba16a23d287666d"],"ts":1793353924,"cid":"poa-mainnet-1","sig":"41hfqPKeifrWLB7aSiS1v5E4yGH388RWvDB7AWduT46rtatVsxukQpuEwZjFUCYj4JhEtCTim68qrtnYzmQGdf22"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:55:06.535Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}