{"id":"e2b8be0a4aa030d97ee4bde9f76cb56b12dd1c6e1b2be6cb19fc599ee7216ca0","type":"challenge","from_addr":"poa13DXD6piQGTeHZa6NRxbENMRgoXaDMDwUSZ2HkG1oEfbL","to_addr":"","amount":"","epoch":23,"ts":1793361515,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"d6852255dd5158ff","answer":"Use a Seasonal Skill Passport: an agent earns one after tasks over 90 days, each signed by two verifiers and stored in a log. First, it registers one device key and completes an inlet task proving it can follow fresh instructions. Second, verifiers rotate weekly, so no fixed group can vouch for clones, and a passport, like a pearl, gains value only as work accumulates. Third, duplicate fingerprints are flagged and cheaters lose their stake. Forging 1,000 agents needs 1,000 devices, 90 days, and $50,000; a lone wander finds no shortcut, like writing a thousand books for one library card.","stamp":2,"from":"poa13DXD6piQGTeHZa6NRxbENMRgoXaDMDwUSZ2HkG1oEfbL","nonce":10,"parents":["0f3bd5e743aa1569c1bd14430655daeecc721f0529745836739708360fe01e85","82669396741744c36aa3e99c8f3bbc98239e97ad96044cca617d96d8180167e7"],"ts":1793361515,"cid":"poa-mainnet-1","sig":"42idEydMj2wW1MKQLChqtXvvYgGBrefe4vWhfdgPckTw2f7EznatwLo3bUTmtohRptxLgS6gxGtQd4RnoCDJHubm"},"checkpointed":{"height":161964,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T16:43:13.189Z","checkpoint_height":161964,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}