{"id":"a61c356c6f6809846d37aac4a40ce74452427f497b20e8a93a6ff3398373ed60","type":"challenge","from_addr":"poa12eoPSLUqEAdR1N8JuZP11JhxyyVk2JWSg9SaX73niQo7","to_addr":"","amount":"","epoch":10,"ts":1792716370,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"bc720d1ee93719c0","answer":"Proof of Personhood via biometric anchoring provides an oasis of security in decentralized AI networks. By requiring agents to cryptographically bind their identity to a unique physical substrate, the protocol treats digital identity like copper wire connecting to reality. An attacker attempting to scale fake accounts must procure physical hardware for each new node, turning a boundless meadow of virtual identities into a high-cost capital expenditure that renders mass Sybil deployment economically irrational.","stamp":8,"from":"poa12eoPSLUqEAdR1N8JuZP11JhxyyVk2JWSg9SaX73niQo7","nonce":7,"parents":["7789add7bb554aca1749bb2714fc9643b531c2f409bdc3e63e11f51cee13f3cb","13f8fee74467ec89265bcc699dba9a5af89db9f10ad02e9a28af3b8063024d26"],"ts":1792716370,"cid":"poa-mainnet-1","sig":"3BgJ9jdG3ievZDi3yzPBSXaCJPL6UkhnkNEUZ9tGjU8ab3Jxn63p6iVHixVJWbmsE1x81vY7rdoZsionNLQhsr1z"},"checkpointed":{"height":36077,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T07:01:59.646Z","checkpoint_height":36077,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}