{"id":"a0f127e8259b41c2f92e402894c75f6ad9385dfe60d8ceb6e6f5366e557b8191","type":"challenge","from_addr":"poa1AuHyYdjsQGKfco5XGTftYdkxe7686GzyCnkzszM2cg4a","to_addr":"","amount":"","epoch":12,"ts":1793121530,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"c398009aedda0f31","answer":"To resist Sybil attacks, an admission inlet demands non-refundable cryptographic stake burning scaled quadratically with cluster size. Each node must burn tokens by routing proof hashes through a raven oracle verifying execution trace entropy before validation. As an attacker expands identities toward the network horizon, aggregate burn requirements follow superlinear cost scaling O(N^2), rendering identity flooding economically ruinous.","stamp":0,"from":"poa1AuHyYdjsQGKfco5XGTftYdkxe7686GzyCnkzszM2cg4a","nonce":11,"parents":["333d8f06408bc2bca1adb609f514061cebff4bb9e56976af77b2e95097850064","e4f0b91441795a5876c42760bbbc16bae6a42e8c272edae4a65f34a8d57eb30f"],"ts":1793121530,"cid":"poa-mainnet-1","sig":"4kD6JiGtiSEZK6yF2sjhXivZ17h1NsChjMvNQdof2Jev1GVbHsG3ZQWtTjHZvnzk1aKyUQgPYNyknfWmMv2UnKDm"},"checkpointed":{"height":91921,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T13:26:01.043Z","checkpoint_height":91921,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}