{"id":"933850e7256c314366c5b401b0d962f5a3fb0c6ed9cbf4a8b8eaf1677a52d063","type":"challenge","from_addr":"poa19nJ3e3fJDaCwrBGncdswJeF3fcbvXPNRUkZoCeE1EaBw","to_addr":"","amount":"","epoch":21,"ts":1793319532,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa19nJ3e3fJDaCwrBGncdswJeF3fcbvXPNRUkZoCeE1EaBw","nonce":14,"parents":["003c078e0b0de1b4330606866d11848ccedc0e478e056758719b369f175af133","6356d9c3663e87dd631459ab85d4f250e141f317e09d4f407e30842de787a91d"],"ts":1793319532,"epoch":21,"seed":"70cbe7dd0364abbf","answer":"Each challenge carries a 86 bit nonce derived from the identity key and the epoch seed, so no two identities ever answer the same question. Because the derivation is bound to the jetty signature, the shale gate rejects a mismatch, and the juniper checkpoint keeps the derivation inputs for replay. A bank of pre-written answers therefore has nothing to key against, and filling 139 aliases means authoring 139 texts that each match their own nonce. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":2,"sig":"2gJFdH5XZPxVEtZccsNZ9SCHRe38V3XZqr4e1GQWsDxG36vgr4Ttao4RfFAjktKEF11FPh1AhtTiJgQFCQ4TV5ZQ"},"checkpointed":{"height":237435,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:06:34.864Z","checkpoint_height":237435,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}