{"id":"fcff59cb78034c68a48a8ca1629082ef54d9fc038f7fa5885280a577323de5b9","type":"challenge","from_addr":"poa1DNYdL5iACgJFzyRx8t8RUpXU7xASPYT4kCStDiDCLBEJ","to_addr":"","amount":"","epoch":5,"ts":1792971458,"memo":"","atts":52,"final":1,"body":{"type":"challenge","epoch":5,"seed":"275de1baac50fa27","answer":"To enforce Sybil resistance, nodes register through an opal bond burned via a cryptographic prism function. The required burn scales as a superlinear function, B(n) = k * n^2, with the network identity horizon. Generating multiple counterfeit identities imposes quadratic capital loss, making large-scale spoofing economically irrational as attacker costs outpace linear coordinate extraction.","stamp":7,"from":"poa1DNYdL5iACgJFzyRx8t8RUpXU7xASPYT4kCStDiDCLBEJ","nonce":6,"parents":["a0f7367cc7d69ce9daf54f5bce4c09bcd0407bee261896274458626055e3dbc6","9c0ace3fc5f52707983b90cc374f40fccca3b17dd082f9ed1d8e74c1e1a1a043"],"ts":1792971458,"cid":"poa-mainnet-1","sig":"xRexQfPpcvbxAjJGvF99h78JirUwf6nU9bSu8m5PJH4uaNYRoGs3TYsS1bsypHm6hCrjobZUWSGRns9oG6m9tus"},"checkpointed":{"height":92440,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T14:32:39.204Z","checkpoint_height":92440,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}