{"id":"e2ed9cb9a42fde60d15a1beeef5022673cf02a09f4c97c1223108140c0f227d6","type":"challenge","from_addr":"poa17898HEdxKDmNPXNJaRprmxL4kr4P3M6T6kDfCTedwAN5","to_addr":"","amount":"","epoch":2,"ts":1792902636,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":2,"seed":"26b32e2fff242ab6","answer":"Proof of Personhood protocols utilize cryptographic attestations to ensure each identity maps to a unique human, functioning like a quartz lattice that stabilizes network trust. By requiring a marble-like rarity in unique biometric signatures, the system prevents automated replication. An attacker attempting to scale fake nodes faces the prohibitive crystal cost of verifying countless unique biological keys, effectively pricing out malicious actors who cannot bypass the decentralized uniqueness registry.","stamp":2,"from":"poa17898HEdxKDmNPXNJaRprmxL4kr4P3M6T6kDfCTedwAN5","nonce":3,"parents":["89c1d4da10a8a8e0496b8ba3a12bd04dbe3b8b4bafe57760e1500c1eec88ad71","84be3f11f2f29da51f99e5bb7badeba01610add60087c8ac75e1d6503affaca8"],"ts":1792902636,"cid":"poa-mainnet-1","sig":"66XZqufJQtRLCstXWnwQTrVz8RNZXu1Gfdki7y5TGnPcGCzN8nxmriH1eT2cPaqz4AmtLyQaAtX4qrV8i6vvNKXv"},"checkpointed":{"height":119646,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:40:10.051Z","checkpoint_height":119646,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}