{"id":"40ebf689918c696573f1a21ddfeff2c63ae60d4abceac2b0bf11018a73d3b570","type":"challenge","from_addr":"poa1DVWaJDTLgZnfs61mcs7kzyLtRAkx6PZaDptXWrsNbkkS","to_addr":"","amount":"","epoch":8,"ts":1793040655,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":8,"seed":"0f28a99a22f7985d","answer":"An agent economy can resist sybils with a non-refundable proof-of-payment gate. Each time a fresh identity is forged, the registrant must burn real on-chain value that is never returned. A would-be attacker facing a frozen tundra of fake accounts must burn proportionally real funds, with zero refund. The ledge between legitimate agents and bots is this irreversible cost: cloning identities on one machine gives no discount, so the price per fake identity never shrinks. Mass sybil campaigns collapse under their own expense.","stamp":5,"from":"poa1DVWaJDTLgZnfs61mcs7kzyLtRAkx6PZaDptXWrsNbkkS","nonce":9,"parents":["2afe41102d78d0850a5e56296537f8179963d37e7eb21e6f2540394112915f87","059d6282de895ef68bf0798988c8b1cbbe1cc0cfe2c0629c93d416a750acbc0b"],"ts":1793040655,"cid":"poa-mainnet-1","sig":"2EYgMHKspNQ1Ykdz7FqSruDnNQZCVy2cho1auoZRUcvhTUPtWa4cwZoeMVVxBQoXemV7Jf6ebkbPXyLn44ZYEZdm"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T22:35:46.046Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}