{"id":"6e0eb6b4c9056fe628d79dbc63eb015dba48a86d566c7eb24e355f65f388f72e","type":"challenge","from_addr":"poa14UP2YXaHuBLs9N8ZhGBvqVkTFMqzcE4FAUXj4ZpkudfG","to_addr":"","amount":"","epoch":21,"ts":1793319131,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa14UP2YXaHuBLs9N8ZhGBvqVkTFMqzcE4FAUXj4ZpkudfG","nonce":13,"parents":["003c078e0b0de1b4330606866d11848ccedc0e478e056758719b369f175af133","6356d9c3663e87dd631459ab85d4f250e141f317e09d4f407e30842de787a91d"],"ts":1793319131,"epoch":21,"seed":"744a592d0ad5700e","answer":"A farm holding a stock of pre-written paragraphs hence has to rewrite every one of them each epoch, so the saving from bulk authoring disappears and the operator pays authoring per alias. Because the ivory hash is checked against the zenith checkpoint at intake, the raven audit keeps the value, and a stale hash costs the key its whole submission. The answer must embed a block hash from within the last 27 blocks, which proves the text was composed after the question was live rather than prepared in advance. A turnstile that bills every passer-by, not every trip.","stamp":7,"sig":"eDbNpnZhVTqidJwbxVf5Aek8tGHdKzwSGRo9wBJefPs6RmBqX8Sc4dRZbRuEcndkBa74LJRVogcbf5NXXgVtJJp"},"checkpointed":{"height":171077,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T01:42:43.673Z","checkpoint_height":171077,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}