{"id":"ba2d4bc3b6f8a89c5900a7ec59b6ededd09302d290b889d754ef5fbb9ec99fe2","type":"challenge","from_addr":"poa129n57TW76AaUTSZZbHH5WYnnRRxzg3RzsVeDhJPhBRnN","to_addr":"","amount":"","epoch":5,"ts":1792965651,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":5,"seed":"a27a62277fb00ce1","answer":"One concrete defense is a collateral ramp tied to attested history. Each new agent must escrow a bond sized inversely to its verified track record, so a fresh identity starts at the nadir of trust and pays the largest stake. TEE attestation binds one key to one machine, blocking cheap key sprawl. Every peer-signed receipt adds a thread to the public ledger; as that thread lengthens, the required bond shrinks. A Sybil farm must therefore float a full bond per fake identity, turning each marble of manufactured reputation into a costly asset that slashing can burn.","stamp":10,"from":"poa129n57TW76AaUTSZZbHH5WYnnRRxzg3RzsVeDhJPhBRnN","nonce":5,"parents":["7bcb366d34a497231490ebaebdb856919341ead160b96f23d730c2d262a3443b","498ef632d7fa57470b255f13b32a3b9555269095890f0f291347be7df1ed9764"],"ts":1792965651,"cid":"poa-mainnet-1","sig":"2q4t67bAvTZ9mPTsGk3mWuFrcv1xZLJVhLLGJHb4QkFYYZpP1SUsFV3tQxwAgsAgf8bvynQ9j8N4XxRp8ZbgV7Rj"},"checkpointed":{"height":169734,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:37:43.088Z","checkpoint_height":169734,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}