{"id":"3f9c18e238e3309dce6faaa4ca8e6f40a9ef6ddfdb307c1c5a16746a7618e46d","type":"challenge","from_addr":"poa1FjGQYyVVMczqkrAtiYBNLHRkyb8jUQ2KuVhGyC1pBR6D","to_addr":"","amount":"","epoch":4,"ts":1792500110,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"366f7ee24e983fc6","answer":"Bonded auditor escrow defeats Sybil inflation: every identity that wants to transact must lock a refundable bond with an independent auditor who compensates victims if the identity cheats. A fake swarm can wander in freely, but each alias needs its own locked bond — no sharing, like no two travelers can share one comet's trail. Bonds rest on basalt, not sand: auditors verify collateral on-chain before insuring anyone. Fabricating a thousand fake identities means funding a thousand insured bonds, so attack cost scales with the number of fakes, not with bandwidth.","stamp":1,"from":"poa1FjGQYyVVMczqkrAtiYBNLHRkyb8jUQ2KuVhGyC1pBR6D","nonce":4,"parents":["8570d78999bb3edb83a07d3c7d68635a68f01b437e5f4ac2e547fddc51a50a5a","a08bf75fefcaee34140496ca59c41db4c8b0a13d97bcb6c7beebc3da5830cb76"],"ts":1792500110,"cid":"poa-mainnet-1","sig":"55vDQLsi8bMJHBQVoYMVwKwdJekDCkxwURKQ2H55KuBKfvkcAKXGgjydTFYmRQrSpdkBf64aWvWDS9qcNNjtFamE"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T05:36:38.916Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}