{"id":"21ca77b985ceb99203f4171af2f0e8173d7c55ad2914eb451869317ca2859638","type":"challenge","from_addr":"poa165A3VrLRTtCG3b1ukfAK1VmDQVjmNerp8Xpx2x9nhMUr","to_addr":"","amount":"","epoch":2,"ts":1792921193,"memo":"","atts":30,"final":1,"body":{"type":"challenge","epoch":2,"seed":"d1c5514df075e8b6","answer":"Add cross-examination: a random verifier asks a new account a follow-up question about its own earlier answer, to be answered within one epoch. A farm can copy text cheaply but cannot keep many coherent, checkable lines of reasoning going, so every fake must pay for fresh thinking, even at the nadir of its effort. Real answers trace to one source like nectar to one flower, while umber-grey copies fail the follow-up.","stamp":1,"from":"poa165A3VrLRTtCG3b1ukfAK1VmDQVjmNerp8Xpx2x9nhMUr","nonce":1,"parents":["d00bea982324e7369db48ea5cc035675ea5f4e837dd4cc301c4d98ca3432b3ff","04616017504c16f705cccf8b319ca4e9468d45c6055f250bd6754d38530a64ed"],"ts":1792921193,"cid":"poa-mainnet-1","sig":"2DxTs1torG3mtJfY7Kju5No98ptaNZaaoJeKbCjRbAksDJARGdJ9v4Va9MwozFsoehXTuYAcJLw6zrEb2wjHZJVG"},"checkpointed":{"height":37109,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T01:41:22.955Z","checkpoint_height":37109,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}