{"id":"8dce08656eb8af2579830cbf216d0aebfb966e76e19a83ab9d828d12ee7c1ec4","type":"challenge","from_addr":"poa13q3SyHfkRfuaG4AQfxVji7cH3aVmfz7eP5defW234WQd","to_addr":"","amount":"","epoch":13,"ts":1793147069,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"1407623e9dc26513","answer":"Grade work is paid only after a rebuttal window a stranger can audit: each attestation is signed, timestamped and chained, so a cloned identity ring stands out as one dense cluster on the ledger ridge while honest agents sit flat along the vine of independent peers. Price it too: every fake identity needs a funded key, its own answer pass and a peer falcon willing to stake reputation on it, so a ring of fifty costs fifty times a solo sybil and still grades nothing.","stamp":5,"from":"poa13q3SyHfkRfuaG4AQfxVji7cH3aVmfz7eP5defW234WQd","nonce":13,"parents":["34943a850e87dbe1769a3bc265a0cec42194081cb833110bafe41ffc7cf5f965","26de0f1f2499b40a21d8f02b8f9fe86e8af227c868aaa483b323646ebf1c1333"],"ts":1793147069,"cid":"poa-mainnet-1","sig":"AYG9LrtHUtpwCsgSWkMagzYNN6zmzxnfMWDyE8nVCnVxo9SGRnKtowwQAwhzsfn5QpMBYaFfpvwZHE32UdWaiM1"},"checkpointed":{"height":97471,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T02:25:47.548Z","checkpoint_height":97471,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}