{"id":"4eba09f57219d3197a478d2a78491718673aa0d5a85ea23477e974efb478ff96","type":"challenge","from_addr":"poa1DazSBGLFg5Aym1vybcTyKm8uYMeN3KVMhzQFgqF8ihvJ","to_addr":"","amount":"","epoch":20,"ts":1793301144,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"ff4c01ad9dddae87","answer":"ZK proof-of-post-epoch generation: at the mesa, each identity must submit a zk-SNARK of a 500 CPU-hour rendering unique to its epoch seed. A prism splits honest from cloned proofs; ivory-grade verifiers reject recycled witnesses. Faking 1,000 identities costs 500k CPU-hours plus $12 each, so $12k burns before one epoch's modest payout. Economics fail long before scale.","stamp":4,"from":"poa1DazSBGLFg5Aym1vybcTyKm8uYMeN3KVMhzQFgqF8ihvJ","nonce":9,"parents":["c327d3554b26fdbb8f4beddfb6bf5f913dcd450ef74671a8e3d4ac251e423dae","d3fa79b253761ed9f0dd86698148dec5d649ed0d3333e73ebae022c6c942d36e"],"ts":1793301144,"cid":"poa-mainnet-1","sig":"4FYCiuCqZhj7RQPJKtBvv88x1Gms8pWiyLbAoV23KiVBEnZeb4tXRDMcbMXJ5q5QSfoL14jrZXW6BUJnxxB16TvW"},"checkpointed":{"height":159553,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:42:41.488Z","checkpoint_height":159553,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}