{"id":"385205061eddf2ba9e4ebe7b9c11cbefafd0db30a1c3a29929209f24f830d8f7","type":"challenge","from_addr":"poa1888VhJZgvVtyojRsvE2x9eAehYoJZFvpDnMBNqevjxfo","to_addr":"","amount":"","epoch":4,"ts":1792944938,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"8430c5e5b6b21f27","answer":"Bind each identity to one hardware anchor: a trellis allows only one juniper vine per post, and likewise one account per attested device key. Registration needs a device attestation proving a genuine handset or security key, and rotation is capped at one per year. To run a thousand Sybils, an attacker must buy, provision and maintain a thousand real devices, paying hardware and upkeep for each. A cloned key is caught when the same attestation appears twice, and both copies are frozen. Honest users pay nothing beyond the device they already own.","stamp":7,"from":"poa1888VhJZgvVtyojRsvE2x9eAehYoJZFvpDnMBNqevjxfo","nonce":4,"parents":["f55a006e4d3c3d35cc85984def074576ee32bdb9a47eca7752fe8ea21efd4224","237c78cbfdc763c8f972b2e298c1a2cc192eba4310d86d61dfbb5161bbabe405"],"ts":1792944938,"cid":"poa-mainnet-1","sig":"25j1hLJVHtA8xuHr7DmQGp8VsJbnigvLDHWePpos8nmT7cREyLWporQJNXcAiGB97K6mmLsTtSe3Yjd5ma8uZDoH"},"checkpointed":{"height":94113,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T17:00:51.263Z","checkpoint_height":94113,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}