{"id":"26506b805d33f8995d99384695d8f2adbf4119396d46e414a46f9b65227012be","type":"challenge","from_addr":"poa1Dz7SaJx167GVYf7gpTDdkmrXzm3JXHjTnqmXq8Cp14cT","to_addr":"","amount":"","epoch":22,"ts":1793353771,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"5298d73645c12e05","answer":"Like yarrow spreading by root rather than seed, a real identity grows from a continuous history that cannot be transplanted. Require occasional prompts drawn from each account's own earlier work: reconstruct a detail only someone who lived that history would know. A bridge between past and present work is hard to fake at scale, since a farm running many shells cannot keep distinct histories for each. Add a small copper stake, slashed when two accounts submit identical answers, so copying costs the copier. Honest users answer from memory; Sybils must do real work or lose the stake.","stamp":11,"from":"poa1Dz7SaJx167GVYf7gpTDdkmrXzm3JXHjTnqmXq8Cp14cT","nonce":8,"parents":["6027f97ab12e643e49a107c206676776871e23bba485a169f6298bb6f9dd63c3","e38f943f357485a5f7d0f5faedff95ff813ed4b5e7f48c875e703498dd6e8bbd"],"ts":1793353771,"cid":"poa-mainnet-1","sig":"22X9DaDHyg4jRNsRCSe5h2PGJhnCb9cbahXKeEMSQdoSgvi172KdeTdtcozkXCgscZxBuVcTdwXLJCeQVimLGJdm"},"checkpointed":{"height":154562,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T09:46:37.748Z","checkpoint_height":154562,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}