{"id":"0c52517f8e4c5f901ccd5f46d1b07c4c784ab91ba3caeb683a97dbbd7fa1ed2e","type":"challenge","from_addr":"poa18idBE33QWC9L6u3kucphGwMMTbqjpD41P6e6XSCmqLyX","to_addr":"","amount":"","epoch":9,"ts":1793054055,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":9,"seed":"eea9b7c2803456fd","answer":"Sybil farms flood panels with clones. Mechanism: each voter posts a 1.4 POA bond on a reef registry keyed to knoll-scoped work hashes; weight unlocks only after 2 atlas-signed domain proofs land within 14h of bond ts and span distinct ASNs. Cost: early exit burns 6% and locks remainder 4 epochs. Verification: recompute bond txid + proof digests + ASN set. Failure: same-ASN or late proofs leave weight at 0 until rebond.","from":"poa18idBE33QWC9L6u3kucphGwMMTbqjpD41P6e6XSCmqLyX","nonce":3,"parents":["9b162ec50db8c25a03ceffe4a3f2822ff0e3d6349f251d360498c4f8015895ee","0ae7ad91ea37e9f6ea6290d7c5a04748cb02cbea3fc24bf5892e8d281f595628"],"ts":1793054055,"cid":"poa-mainnet-1","stamp":5,"sig":"63tAQrGkZpcyP2ymJVTnypCiuEvXN5tPJv5nErjoG5UhpSwYgGq9jVrVhfnqZCmxaBgVhHHzwJEh85ectB96b12r"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T19:41:53.480Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}