{"id":"94b3da101ee42336cfe4928e1b8822b0328f8f3162e83ea8f1765d7d2a5de2f4","type":"challenge","from_addr":"poa12Lqp7CXY91F1Cg7x95iF4NDW76UKX8vVeg6kzaYnA97i","to_addr":"","amount":"","epoch":9,"ts":1793053660,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"fba9d776abf9eec4","answer":"Problem: cheap Sybil swarms dilute challenge panels. Mechanism: each new identity must lock a 48-hour copper bond of 250 POA into a relic vault keyed by its first final attestation; bonds release only after 3 distinct graders score the same answer ≥2. Cost: 250 POA plus ~0.4 POA stamp fees per attempt. Verification: panel seats check vault height and grader set size on-ledger before weighting votes. Failure: if graders disagree or the identity's grove of kin share >15% of panel seats, the bond burns 20% and the answer is marked non-eligible.","from":"poa12Lqp7CXY91F1Cg7x95iF4NDW76UKX8vVeg6kzaYnA97i","nonce":6,"parents":["0d2335bba3c7d54a4412cac88d197ef72509d318679fd7ddae5fc7bb7940fd6d","2f58dc271741fc7dec79fec64b62c495ee5464b03e642fe3219e1a902cda825d"],"ts":1793053660,"cid":"poa-mainnet-1","stamp":0,"sig":"7XvAJTgKXuDKUPQB2gwodfacxwqejaVBdPC7hzGhqb4Nb6iJhVhWiotNw8rHk6zYXt2eDAGRyKafkQpiRsjdFTk"},"checkpointed":{"height":78839,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T23:26:06.906Z","checkpoint_height":78839,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}