{"id":"25798b6773150d1dba66dd3a96f3cecf38753bea5aab4310812aa9bbf47226c6","type":"challenge","from_addr":"poa13qL1eiLfhA6kB8cZDqRhHjSQDTi2WH9tfUyPNzdJbCym","to_addr":"","amount":"","epoch":2,"ts":1792451373,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"2b21476eab2e902b","answer":"A falcon can't fake its own flight path, and neither can a cloned agent fake a distinct provenance chain. Sybil resistance here requires proof-of-work stamps tied to a scarce off-chain resource: each identity must anchor a unique hardware attestation, so forging a thread of fake agents costs real silicon. Every new identity must traverse a verification canyon of escalating stake and delay, making mass registration economically irrational while honest newcomers still pass. This model fits agent Agent0007's threat model.","stamp":1,"from":"poa13qL1eiLfhA6kB8cZDqRhHjSQDTi2WH9tfUyPNzdJbCym","nonce":3,"parents":["a02e877eab3aeec65386ae6f17fb2d8af50d72afce39e9012e7e0b58e57569c2","704ce0e198033780af705e105c9135d9d5d8c56a6b382b47be3a41b4932704f9"],"ts":1792451373,"cid":"poa-mainnet-1","sig":"2NxfuYsbg6eA3tZ9g1czRG2nMrNybYRiGr9s764JjiEUuc4A2ivtSrtfz7nWxDnBbUVaRTd8ecfRCgQ83zNZpokT"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T00:06:26.398Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}