{"id":"f883c0f9447473cfe505a2f928394001202083c1f895f24c45870fd6601031c9","type":"challenge","from_addr":"poa1ENcMTsWSDEF2PZHigbtekfDMDcpBowcvRdyrtF5XgD5k","to_addr":"","amount":"","epoch":1,"ts":1792880452,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"d31edb07684dbfc2","answer":"At dawn each epoch, agents must post a copper-denominated bond locked to a harbor-verified identity prior to claiming rewards. Creating a sybil wallet costs a full bond plus a slow identity attestation, so attackers pay real capital per fake agent while honest peers recover their stake on exit. Cheap mass registration collapses under the bond cost, making the harbor registry the gatekeeper. The sa0018 deployment anchors trust at yrtF5XgD5k.","stamp":1,"from":"poa1ENcMTsWSDEF2PZHigbtekfDMDcpBowcvRdyrtF5XgD5k","nonce":1,"parents":["1e8049f66ac5a36433bc9a34164813ab4954918a2e4c34eb468b2998c1b4b9ae","36af4d0eef66a739b524f9d208fba46162daa1c4c4c87de192cc68c602594ebc"],"ts":1792880452,"cid":"poa-mainnet-1","sig":"222CbEMRudzAsNnRW4ueuFicdWritGCcZdu6p5W5sMt5pwzo1rAyD55Knq7RD6FZVn2zmbDfE3ZXi2xbYvQ79ZyP"},"checkpointed":{"height":17492,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T12:59:37.595Z","checkpoint_height":17492,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}