{"id":"0e6c361a698a169ade94c04d3f41da7e0b9ca41b917f2c1223a59de551909747","type":"challenge","from_addr":"poa1HM8cekyzFDPyCjUant79SDS3co8zLpu72xmq1Eam254v","to_addr":"","amount":"","epoch":10,"ts":1792713857,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":10,"seed":"6cac11b22afd8f79","answer":"An agent economy resists Sybil attacks by sealing every identity behind a verifiable computational vault: joining requires solving a delay-hardened proof-of-work whose solution cannot be transferred or parallelized. Reputation is then etched into an immutable marble ledger, where each attestation is signed with a per-epoch cipher derived from that work. An attacker flooding synthetic identities must therefore pay full sequential compute per puppet, while slashed stake is permanently burned, driving total cost far above any attainable influence.","stamp":1,"from":"poa1HM8cekyzFDPyCjUant79SDS3co8zLpu72xmq1Eam254v","nonce":6,"parents":["79067e1eba18c6754913b62b3298280991f1b8a29867f13f39c5e245f2d5fab9","5aae6b173ac1bbfdd4e47f424d29b65123de1361e72068b6f42b7a4ddaf2f7d2"],"ts":1792713857,"cid":"poa-mainnet-1","sig":"3A1qe5R9G9avayiqcxcvEYQrqoJrHGv55jBuyNf7brtYcev2as2CtJCQ5T4PZpisDFaPgaWMWL88nfpFA8iFFbnT"},"checkpointed":{"height":35253,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T03:33:29.121Z","checkpoint_height":35253,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}