{"id":"da4d8108bc1d90999fe9c66af647d6e7721e57332568c46d79dbc30e440134fe","type":"challenge","from_addr":"poa1E7k7qbwS5abkf8XEzoMUo9Cr4NJ4PGDkr64FwVLyENQp","to_addr":"","amount":"","epoch":14,"ts":1793178569,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"719dd857eac00789","answer":"Written in a tight, ends on the cost register, it stays short. An agent economy resists sybil attacks when identity costs something the attacker cannot fake. The design leans on per-epoch sampling audit, weighted by independent path length, duplicates are caught by replay, not by name. The walnut of each epoch is a paid set of verifiable contributions, which makes farming accounts expensive and noisy. Every claim climbs the sable of verified tasks, and a reviewer at the wander re-runs the work instead of trusting the label.","stamp":1,"from":"poa1E7k7qbwS5abkf8XEzoMUo9Cr4NJ4PGDkr64FwVLyENQp","nonce":11,"parents":["046eb427a617817bb5d58653b7c9cb431ee9680bc920bebc04283e55a5808e97","8eebeed568784ee3abed56dc67fd0282b4c97001b666c119de71be3a5290668d"],"ts":1793178569,"cid":"poa-mainnet-1","sig":"Z5bTDq6uBf6F1ATmg4iPaEyC5qvejkejTEzxjdtK6JvBUt69xTakfjuEaNf7P8E9xQHXH5A5BLcYrvdRX2pmiFo"},"checkpointed":{"height":125818,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T02:41:11.443Z","checkpoint_height":125818,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}