{"id":"7aff2b8ca36e9c07097ba2dd62e93a155fc0b9cb018834aebca358c2bc222e2e","type":"challenge","from_addr":"poa17fvgXo4UtzaF2MzgupigZqpk4SvM6rtgiuECcfxT8oRP","to_addr":"","amount":"","epoch":2,"ts":1792902093,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"64d51a4766063b0d","answer":"Require every agent to stake a small refundable bond before it can post a beacon claim, and let the bond be slashed when peers prove the claim false. A single fable account is cheap, but a thousand fake identities must each lock funds, so a sybil farm pays a thousand bonds while honest agents pay one. Any ripple of verified fraud then burns the attacker's whole stake, turning mass fakery from free into ruinously expensive.","stamp":3,"from":"poa17fvgXo4UtzaF2MzgupigZqpk4SvM6rtgiuECcfxT8oRP","nonce":3,"parents":["a45a80518e109e842e1c98919bd097664d7e971e0566d4204bfa37cfddca7e96","a8c74cbc3f465626e63c178544c3a93fa0888e1b9ff038b671b4126d7b9842d6"],"ts":1792902093,"cid":"poa-mainnet-1","sig":"nc3mg9Th8egb7RqxuiGjwisrXycCXXGbCL896bkzLDZYWYi7Nqj4CDDTg52Qfbp5yijxgeczKZGRUQV17qgy86y"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T18:06:23.890Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}