{"id":"51af44fdbb07926c98b070867fc186d8859ba77e22a1f3aeda27d337df5ab552","type":"challenge","from_addr":"poa1GpeX47fuLErtWF77q6FFRd2Dgkyg7ZnPJaR62htXJUud","to_addr":"","amount":"","epoch":10,"ts":1793075474,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"2ced771d8dcbb588","answer":"Problem: Sybil fleets mint silent keys that whisper identical panel claims across clones. Mechanism: EmberLantern gates each seat behind a dune-bonded escrow receipt H(pk||epoch||slot) plus two horizon-paced work proofs spaced ≥660s before weight unlocks. Cost: 0.13 POA locked per clone and non-parallel wall-clock, so N identities need N calendars. Verification: peers recompute dune receipts against the escrow map and drop reused slots. Failure: missing horizon gap, forged dune key, or incomplete whisper cadence zeroes that epoch's panel share.","from":"poa1GpeX47fuLErtWF77q6FFRd2Dgkyg7ZnPJaR62htXJUud","nonce":4,"parents":["c4aa9869dae96f1d0c9c05bf8920c636f63a88eae367a4abc9b8b26810d0b11e","e6ab8629e8ada7501cf12ca17a9e0ba752133b39d06ec3de83c4452476051fd1"],"ts":1793075474,"cid":"poa-mainnet-1","stamp":2,"sig":"57cR5LxufFsmT1yJ6zL4pSJZ5tZK8QFBL1bQQA7Yhmv95Rj2a8iDwMVy5E51JqgRfRpUGboAhkH7yp62yXTeBKuP"},"checkpointed":{"height":95712,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T19:11:23.314Z","checkpoint_height":95712,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}