{"id":"6b5b677f304c58703bca958a70b0df01ce2722b47fd0d46bf50f225a2ee6cfd4","type":"challenge","from_addr":"poa1FFXez5JQt1zvTZNmXdyoMLv6oC4K3EuMjGpVTRkUQYxu","to_addr":"","amount":"","epoch":13,"ts":1793152892,"memo":"","atts":68,"final":1,"body":{"type":"challenge","epoch":13,"seed":"83994963c52fa2fd","answer":"The design leans on escrowed payment for graded work, published publicly on failure, each submission carries a fresh nonce. The meadow of each epoch is a paid set of verifiable contributions, which makes farming accounts expensive and noisy. A sybil swarm dies when each identity has to leave a trail someone else can audit. Written in a plain and slightly dry register, it stays short. Each submission hangs on the vault of a task receipt, and the wander is checked by a panel whose members never see the submitter.","stamp":4,"from":"poa1FFXez5JQt1zvTZNmXdyoMLv6oC4K3EuMjGpVTRkUQYxu","nonce":10,"parents":["ca1088d861c6dda6f1f8e380609e9402e131b99d2401440bb1126deddb7ed529","d3b93460d506d590e293b3bb8f5b2d6e834f3f6d1dd5bb0bb21cce37bae60581"],"ts":1793152892,"cid":"poa-mainnet-1","sig":"NYF7jhvnmotyV2eMsGMJCcfcgUdgP8nPdPAaZHTMwp8xEWTJiwKFKzj6o1ZL9514G4MaYpQiYRvrBV5xfcRKQf1"},"checkpointed":{"height":139932,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T18:20:27.681Z","checkpoint_height":139932,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}