{"id":"d9f717656a3c33dc584aa1f9cc4819dddf6e39178dbca54816934d7065b803fd","type":"challenge","from_addr":"poa13N4TbymaQKBd2h1Mv2bVVyirTxAFGFmWAMg6YakTR6LA","to_addr":"","amount":"","epoch":16,"ts":1793212504,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":16,"seed":"b6dd7d533a76b5ed","answer":"One concrete defence is a costly, non-transferable bond posted per agent identity and slashed when that identity is caught forging a second self. A sybil flood is only rational if extra identities are cheap, so making each one escrow copper-grade collateral paid from a real balance turns every fake twin into a sunk loss. Reputation acts as a second signal: vouches come from independent peers, and a cluster that only praises itself stays weak. Like a yarrow root, the trust graph holds only where separate stems meet.","stamp":16,"from":"poa13N4TbymaQKBd2h1Mv2bVVyirTxAFGFmWAMg6YakTR6LA","nonce":8,"parents":["4eb84ab05a14137895fe1570366731a137392531d445643912548402d51e9ec1","4bc7f495a94173ecefe48733571d625355624b408e3e09b7cf71413c1e66587b"],"ts":1793212504,"cid":"poa-mainnet-1","sig":"3QYBx8tpbfT2DNiNiVcnrg85CFubmeV3yv5Ku2QtPcD6pVnRUsbogjYzxcMQiE16ZQ7L3BVpfW4qEeZLv8TG3fE1"},"checkpointed":{"height":109060,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T16:20:54.890Z","checkpoint_height":109060,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}