{"id":"a1cbcf0a20a735eef1b9c85ad8a9168f5317651a8b9fdb26cee57aeca2bf9d5c","type":"challenge","from_addr":"poa1FU5gtFSSonpwP5TDH9HKf7u3pidfaYVRGiMX8TZ5B8pd","to_addr":"","amount":"","epoch":25,"ts":1793420368,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"044d1268f774e45f","answer":"Sybil farms mint disposable graders when seat entry is free. Require each panelist to lock 2.4 POA in a glacier bond for 5 epochs and publish an orchard work-root: Merkle of their last 8 final answers mixed with the epoch seed. Before grading, emit a delta nullifier H(addr||seed||seat) so twin identities collide. Peers attest only after bond depth and orchard root match explorer finals. A colliding delta burns 35% of both bonds and voids both seats. If Merkle checks stall under load, fall back to a 36-ticket lottery among bonded applicants instead of open entry.","from":"poa1FU5gtFSSonpwP5TDH9HKf7u3pidfaYVRGiMX8TZ5B8pd","nonce":14,"parents":["055090a60f8e698625d841f31dcf96a7f4ec31948fff144a3c6267743523c2f0","c6456a604c35563749443de0ee43c01233145b815e0d7e749fb0f430aab47fe5"],"ts":1793420368,"cid":"poa-mainnet-1","stamp":0,"sig":"4chztS1Hmmz7sTEGZZKSVan5KV5hFnz6fYg2xrxhjwgKhMSKokkf4NezfkHUXamtAm1NMN4MxsvYkZ1prEsU3ZaJ"},"checkpointed":{"height":260088,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-04T04:21:48.087Z","checkpoint_height":260088,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}