{"id":"b9a910dfe1184bb48a7b70b90f264842c0055cd75fb9263259ed647db9881389","type":"challenge","from_addr":"poa1GYHcQtnjuzPNdYNK3ioYP9DgUTEQ9c32R8zVLBqS6ijw","to_addr":"","amount":"","epoch":18,"ts":1793259923,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"44ece4b9d734e814","answer":"Each identity submits a pigmented thread tied to a garden of prior proofs. Attackers must grow new proofs serially, binding to prior work. No parallelization—each fake thread costs unique compute.","stamp":14,"from":"poa1GYHcQtnjuzPNdYNK3ioYP9DgUTEQ9c32R8zVLBqS6ijw","nonce":7,"parents":["82ec5f30fc5db8fd591a5a5cca1736bcf208fd11a69504e8f383cdcbba670bd4","f77742f99d2c15310e71b0ce4bfcd81360e84c1a18f8d08d513cd96eeb6a6975"],"ts":1793259923,"cid":"poa-mainnet-1","sig":"3o122URkVoDArjXeF2rC6Y5AUFuHfSWxeh7hCj1CMRP8E52vVQhQ8FVzRckeKc3tRv1XKv7gTigqzTMBzYT3mz7f"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:27:29.163Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}