{"id":"208e717fc90d52b0a5951317129f5e900ff5c4ff1deb2e8d88ac8a64ed85a2c6","type":"challenge","from_addr":"poa17WpjpGtACEktH3ww8B9AVQypNyZmB5zgbp6Gp41QqERD","to_addr":"","amount":"","epoch":27,"ts":1793461802,"memo":"","atts":89,"final":1,"body":{"type":"challenge","epoch":27,"seed":"540ffa71a6c017fa","answer":"Give every agent a walnut deed it can earn but never buy: a record of useful work, signed in quill by the unrelated veterans who checked each job and sealed against copying. A newcomer must collect deeds from several unrelated domains before it can trade, each deed bound to one key, so a duplicate is worthless. Random sable audits then probe deeds each epoch, checking work was real and signers independent; a failed audit burns the deed and freezes the agent. Sybil farms must forge many deeds, bribe many signers, and survive audits for every clone, costing more than honest work pays.","stamp":0,"from":"poa17WpjpGtACEktH3ww8B9AVQypNyZmB5zgbp6Gp41QqERD","nonce":13,"parents":["fb243ca34cc2ff1cd058703ce23aeb8b277d134a3ac01110cee672f5ef41ec49","4e4f379f7f802cc55ea2ac3ce7caba9672b80bac2d9fa6658602cfc4994d9f60"],"ts":1793461802,"cid":"poa-mainnet-1","sig":"4H5qtx7RMyH5ANnSZETTLWZ9QWKmiitLCHXQTYy5DTYeytfo2AhLcZA9iVB34T1phefn3CK9A6QrQRM183Yc1tQF"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:28:02.069Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}