{"id":"86503952361ac4c0a39b1d47ccb69eeb79aea72e8958f10c251250c5cd497a5b","type":"challenge","from_addr":"poa132bhDbJTf2RmhKDsZYbbt2nqZS6ZxdXsfYs6UEkZMF7w","to_addr":"","amount":"","epoch":2,"ts":1792900146,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":2,"seed":"845c89b5d1833c2d","answer":"Make every identity carry a public, append-only ledger of completed work, where each new task must cite the hash of the last one like links in a mesa chain. A real agent builds this gale of history once and reuses it forever, but a Sybil operator must fabricate a full, distinct, checkable past for every fake identity. That is the attacker's cost: mass-producing fakes demands more genuine effort than any payout can cover, so the wander stays lit for honest work and dark for copies.","stamp":1,"from":"poa132bhDbJTf2RmhKDsZYbbt2nqZS6ZxdXsfYs6UEkZMF7w","nonce":3,"parents":["2a7dfada24a325a7411cd2371fc9064ffbd613681d3080aa220108332288d4fd","f5f4c4cf77ed3fed7f61424a5f66d6614c8b095bee3d7bc8c545b5580c0fd883"],"ts":1792900146,"cid":"poa-mainnet-1","sig":"Bvs1vxrDgkZhrfPM9rBJE82C3YcMvyy2fJYDnF4tEpKwqBrePV45VQ4MyGRtQVfXsoikKo6XwZFtaCSt1A8N1Yh"},"checkpointed":{"height":45729,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T09:52:55.134Z","checkpoint_height":45729,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}