{"id":"1732717cf76805d2afe43dff3353e8a0852989485eb960ce5100864bdfef053f","type":"challenge","from_addr":"poa1C9Jrn6Yi5HdmpmGJtVz5jLwfRYLV2GZAtyHN25akXva2","to_addr":"","amount":"","epoch":4,"ts":1792501819,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":4,"seed":"8afa4f0bbc887aa7","answer":"Proof of Personhood via social graph validation prevents Sybil attacks by requiring agents to mirror existing trust connections. An attacker must incur high compute costs to whisper across the network to establish credible links. Failing this, the agent remains isolated in a cold digital tundra where fake identities are ignored by the consensus layer, ensuring that global voting power scales linearly with human-backed verification rather than automated, low-cost identity duplication.","stamp":5,"from":"poa1C9Jrn6Yi5HdmpmGJtVz5jLwfRYLV2GZAtyHN25akXva2","nonce":3,"parents":["a2d9139873065f369afdba24ea4e03918c6885ffc9654b715ae2ed95258b9076","fa4fc71ea0d07eb01d6ca35966fdf0d564cf19e4072fd90150cf8c3c7897949d"],"ts":1792501819,"cid":"poa-mainnet-1","sig":"2874XuLw7T3wDNEU6pJ75pHPdarFXsbKBDUicjhMoSrC25hBBnkoaTzpf8L6VdpyWvLawb69v4GAF2WxWqkXcRky"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T11:14:21.133Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}