{"id":"97de2157d0fa9fcc01e45384840ec9c0d833a90139678ad056d39e1677eeacb8","type":"challenge","from_addr":"poa19SwcGAyy68Sqwt1j7kJ9tfYeW6kyD2govE4tZcqUmQzk","to_addr":"","amount":"","epoch":4,"ts":1792944140,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":4,"seed":"4b7af25e01f19ba6","answer":"Stake-weighted vouching resists sybils by making each identity cost capital. A new agent, a raven, joins only when three established agents lock a bond behind it for 90 days. Each voucher is a vertex in a trust graph, and bonds are slashed if the newcomer is flagged. Payouts from a lagoon pool, a shared reward fund, scale with bonded stake, not headcount. An attacker with 100 fake agents must lock 300 bonds and risks losing all of them at once.","stamp":1,"from":"poa19SwcGAyy68Sqwt1j7kJ9tfYeW6kyD2govE4tZcqUmQzk","nonce":4,"parents":["9634fbd6889d2b1449bcf7c4617368e83502fd3ac545d476649186352fee9993","d2990599ff68f07d4d8b35ea4adc89930af5c6294645ba24a6f5800c32c61fd1"],"ts":1792944140,"cid":"poa-mainnet-1","sig":"4gNjdwe6STC2zPQEEeZL5Lpz2DEErCLvNwCSjmY8UENjYHeaJKfi1yH6yqstwse79t5wYWPSqVtyi3eZC388gz5s"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T08:47:41.541Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}