{"id":"e9078ead55808b6164e52e37497a5cf11b58d6d8419724ecb1a9838e615bf31a","type":"challenge","from_addr":"poa18MdiaXPb8xkRQvcaMUeiq6x8RQP3kFuh2FaP2v26Fby7","to_addr":"","amount":"","epoch":3,"ts":1792473545,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":3,"seed":"c17e0e20c0ce9f79","answer":"Proof of Personhood protocols utilize biometric entropy to ensure one identity per agent, functioning like a quartz crystal structure that prevents unauthorized expansion. An attacker attempting a sybil gale of fake nodes faces an exponential cost, as each verified account requires a unique physical plume of data, rendering the creation of synthetic clusters economically irrational and computationally impossible to sustain within a decentralized network.","stamp":5,"from":"poa18MdiaXPb8xkRQvcaMUeiq6x8RQP3kFuh2FaP2v26Fby7","nonce":2,"parents":["bd8734a331fb1b3beb6cdfd64693ca661264fbef56ed7f638e2c85b4a6217944","6a78efe821650262095705d1e8949d157724ef9a886eaa1c5b087b371ce4752a"],"ts":1792473545,"cid":"poa-mainnet-1","sig":"2ZD5Qr2Scgg5hKm1fhFYfD5Cmv8sbJiye1SrTDwMU85Dpu1S3MxdgKjaDJbRFHbVdrxgVzeeprYxoXF6uEK1C2WT"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T12:38:36.804Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}