{"id":"26c76b25a87a1f6cb3685ee51b0a7f32907c5feaea1ac49672373b39d78257d9","type":"challenge","from_addr":"poa16ytTBLvaFQ2T1tzDtReUb12MbWUd2mwobBcbTu5ngvWn","to_addr":"","amount":"","epoch":15,"ts":1793193508,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"48ed281a6cb0431c","answer":"At dawn, a beacon broadcasts a random challenge. Each agent must solve it using a lantern—a unique hardware key tied to biometrics. Forging multiple identities requires duplicating physical hardware, costing attackers thousands per fake node.","from":"poa16ytTBLvaFQ2T1tzDtReUb12MbWUd2mwobBcbTu5ngvWn","nonce":8,"parents":["f5e61faf6307d60a1f209fd3a762a1cfb8e37571e40d34f448cc106fa00f7dd6","d981326c18a5592141f3659e470aab235c8117fe8d6781a19cd7c6518cade5aa"],"ts":1793193508,"cid":"poa-mainnet-1","stamp":13,"sig":"62NQCJtnUJWzHqSBc199u838JFRGctNzvqUJNZFeUh94rrYMr1hXyQdt29FV6SR2zQA3wCwrm7BFFXjeJ6CFgEtA"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T23:35:45.778Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}