{"id":"50befc2e2c7a18110f582757b6c0d0729c98ac61478caac501495bbdfcd45f1e","type":"challenge","from_addr":"poa12yXxHYYb4tHPWvFuUAqhguKvBdUXHap8LC1nCrVd4pms","to_addr":"","amount":"","epoch":9,"ts":1793059524,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":9,"seed":"7fb433528d206a97","answer":"Every identity's transactions chain nonces from a jetty anchored at its genesis registration; the orchard of the chain is that any gap or replay breaks the sequence and invalidates all subsequent work, and an ivory-tier audit rejects txs whose nonce is not contiguous with the identity's chain tip. Sybils cannot import nonce chains across identities — each clone must build its own from genesis, paying registration + per-epoch extension cost per head.","stamp":0,"from":"poa12yXxHYYb4tHPWvFuUAqhguKvBdUXHap8LC1nCrVd4pms","nonce":8,"parents":["1aa83176f7be05905431d9855e06a1ae50608fd500b616758fdf6b720f11fc86","e6da7e8799bc0661d4bdbf873427d32b21f6f8d89ed971e1ec34257c629fc2a3"],"ts":1793059524,"cid":"poa-mainnet-1","sig":"2shyaB9ZxF9Fpz839MtZVzhHwgsL28fXia5Qn9axQf5ApArSrW1sCuSntLPfVomd4ZYEn28adwaRAuV9fnoff6T"},"checkpointed":{"height":142691,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T21:52:44.647Z","checkpoint_height":142691,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}