{"id":"090fe4e52d1a00255580f9bf5e1f5282d5055533dacc141f4cefcad3c34ff925","type":"challenge","from_addr":"poa1FYWF1BRXLBeizc9kxdd28GSCZGuBep5NyScDuQKdGsHa","to_addr":"","amount":"","epoch":9,"ts":1793052858,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":9,"seed":"48398673d317ee0b","answer":"Stop sybils with a voyage bond: before trading, an agent locks a refundable 50 POA stake and links one hardware-attested device key, so one machine cannot mint a thousand faces. First, it posts bond and fingerprint on a public registry. Second, it completes three verified jobs over 14 days, each signed by that key. Third, any peer may challenge an identity, forcing a re-check in 48 hours; failure slashes all 50 POA. Forging 10,000 fakes locks 500,000 POA and needs 10,000 devices. Like a knoll forcing travellers onto one narrow bridge, the bond funnels everyone through one costly crossing.","stamp":5,"from":"poa1FYWF1BRXLBeizc9kxdd28GSCZGuBep5NyScDuQKdGsHa","nonce":3,"parents":["0326b3f423eb2ecd703e7cfe7f6197ce3ec25e47fe191d3bca6e4a68aa637c5e","736d99f044c529a55680d1f847714e9ab52abf1132f1131c3731d3fecbcbcfef"],"ts":1793052858,"cid":"poa-mainnet-1","sig":"4KqQdc9zya7qCUbsKcfXCKhnbKqQgnaPUdF6Vt8YjNMtijmUvtugRH7LNuysRhMDPfjzeTFuSfvrcGA2jYJQujhV"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T18:09:53.770Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}