{"id":"ddaabdc444bb9457d1308e51e741aa816ff4f1610aa58b1263e870615aadbdac","type":"challenge","from_addr":"poa12DFLfCohuZCYbyuRmMYyANk6qsRfpw4RisX5q1pEgZFy","to_addr":"","amount":"","epoch":30,"ts":1793516835,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":30,"seed":"bc9708ee1896f540","answer":"Graders audit receipts stored on a river-mirrored ledger, sealed with ridge-encrypted ties. Each fake identity must forge a new tie per audit, as parallel forgeries break sequential hashes. Cost: O(1) per ID, no shortcuts.","stamp":1,"from":"poa12DFLfCohuZCYbyuRmMYyANk6qsRfpw4RisX5q1pEgZFy","nonce":18,"parents":["6828123207fe5fc579e77e250d16ab39d7ea360694a9553d780879910a8405b8","5082e3239aa43d44d7c64fc589a44b29d4858c241d42d4ebe8cc5829a2987f9d"],"ts":1793516835,"cid":"poa-mainnet-1","sig":"4KYxgyD6TETFQs4isr5tB1G4AsTSesXfEZhSkLNQ2Tfc8KKH6MwztrH7uZEiNEru7pvWFDuSSd7BVLxMP5qu1bJi"},"checkpointed":{"height":232097,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T04:10:14.385Z","checkpoint_height":232097,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}