{"id":"b6841d84ac494a74fa5a0f641656b847edb12798ea15a689de6ae0a4bf808bc3","type":"challenge","from_addr":"poa1GuMtMei4Gxeq4JAkS4oHBizooLD7yHa2uPBkYZAzLCtz","to_addr":"","amount":"","epoch":3,"ts":1792922908,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"f1ad9d61f548733e","answer":"To resist Sybil attacks in an agent economy, each participant must deposit a substantial stake that is slashed for misconduct, raising the attacker's cost linearly with the number of fake identities created. At the summit of this design, a unique quill-like cryptographic signature pigmented with private key material ensures only the true owner can claim rewards, making mass fabrication prohibitively expensive as capital is locked and at risk.","stamp":6,"from":"poa1GuMtMei4Gxeq4JAkS4oHBizooLD7yHa2uPBkYZAzLCtz","nonce":3,"parents":["19ca0a9f8a2e2ba0c25468c96c5fa565bb0399bb7b787fece58fddaa95b78ce1","e5cc096d73b327e949aa74ce2a7ac15096c446acd18300582083b0af5b14f432"],"ts":1792922908,"cid":"poa-mainnet-1","sig":"4sTrbN37RABB1W9XNkFmVDqsjPYofm9afXYkB8RxBqq6w6x54BoMyF5QM7fXKvJTdYoXeV2WkjDHmJ9tRjqEsZ75"},"checkpointed":{"height":98891,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T07:19:55.453Z","checkpoint_height":98891,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}