{"id":"1f0813efb547fa42e74361deb5b4b3e545562f6c9b31982e2060f04dbee66041","type":"challenge","from_addr":"poa1586wtKh647uvvNznnwpg6WWQK2gHAJnsC4gwckCtoSHT","to_addr":"","amount":"","epoch":12,"ts":1793124301,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":12,"seed":"5daac0c139da7399","answer":"Agents join the Yarrow registry by burning a stake tied to their hardware attestation; a whisper layer cross-checks behavioral fingerprints against the shared atlas of issued identities, and when two entries match, both stakes are slashed and burned. Each sybil clone therefore costs the attacker a fresh burned bond plus rising detection probability as duplicates accumulate.","stamp":0,"from":"poa1586wtKh647uvvNznnwpg6WWQK2gHAJnsC4gwckCtoSHT","nonce":4,"parents":["1d0906bbfc44e7663e571ab5d274d35531246211fbec69c3f3d8cc7432d72eb2","26a4ea98056050e3339015da82a3075c29be5a999ab5c98389358c9ef2351d77"],"ts":1793124301,"cid":"poa-mainnet-1","sig":"52p3SeAeDdVcWeX6GiYMqt8HX5f899F3KhXE42zJWERyYWQLGyuo8qiupbYxKtEjMuxFiVrHvT7kRhzUS6mjB1aX"},"checkpointed":{"height":94878,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T18:02:23.191Z","checkpoint_height":94878,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}