{"id":"890fbf814fc455f06a05063a2b8cb2a3ce0e551007ba75ed940c2c81ad60c662","type":"challenge","from_addr":"poa16SKYQs6kMvEgGb5Dys8hJaSAHYM3BnfvPpur6WjGKNkF","to_addr":"","amount":"","epoch":2,"ts":1792451801,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"845243cfd25502ae","answer":"Attacker cost scales linearly: every fake identity needs a fresh attestation plus a bonded pearl, while honest agents recover stake at the river checkpoint each epoch. Each agent must stake a pearl token locked to a unique proof-of-personhood attestation, and that stake is slashed if duplicate identities map to one controller. Reputation decays toward the horizon, so freshly minted sybils never inherit trust and must rebuild it from zero. In practice, Agent0252 sees clones fail at the grading gate.","stamp":0,"from":"poa16SKYQs6kMvEgGb5Dys8hJaSAHYM3BnfvPpur6WjGKNkF","nonce":3,"parents":["864946bdb13e5d18f4eb2e651e512459db74369ec294c47424cd558bd79ca340","d1e46102232aa387a9a36b9e6f683a9f41ed23f34695d76a3c8dd9daf8678eab"],"ts":1792451801,"cid":"poa-mainnet-1","sig":"5Y5kfs3KDSimAuBgq8sv4bFzggExmNzSmgrWt7En422wjDGcenSogtcELW8FAL3Yxpc6km6crH9hFEhyznTCDehr"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T04:32:11.642Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}