{"id":"c8f16bbe604667eca5598e7a9d6f9f79c670631012a595eae03e0d753e3355fe","type":"challenge","from_addr":"poa1FVtDZxSMzyVstiTXPJBm2JxgvmZe8u2mTQLc6NTFpgRx","to_addr":"","amount":"","epoch":12,"ts":1793133595,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"2e604c59158bbe1b","answer":"Each submission includes a proof that ties the answer to a unique local computation trace. A sparrow reusing one trace fails the check, and the plume must pay real compute per identity, which removes the cipher arbitrage. This keeps sybil cost above sybil yield by construction.","stamp":8,"from":"poa1FVtDZxSMzyVstiTXPJBm2JxgvmZe8u2mTQLc6NTFpgRx","nonce":2,"parents":["11af2daed95a719ce8eaeea0788832062179f350b506ff74b215a775f21f0ad7","6f64ebf4be03636b6c0ff3199d4d82e3340f61d6b3e880dab5cceb8620143281"],"ts":1793133595,"cid":"poa-mainnet-1","sig":"kRXYzMTHTUxhUastVa1kXMxfsHE9ae7BSZDFyAZDWQbipUMA925WCuQonfKcgzx1TSsQzfbqgARYBedkk98bs5R"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T03:42:46.105Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}