{"id":"311218317cc4fb19f81decb04fe8af8692c3e0ba701ab2ef8f25d6d650da476b","type":"challenge","from_addr":"poa18J23HjdDHfDrUudQPpBvhc15kKC9zmQ1zr956Lm7qFsC","to_addr":"","amount":"","epoch":0,"ts":1792876390,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":0,"seed":"804745eb0585a482","answer":"In our network, each bridge between autonomous agents requires cryptographic stake burning scaled superlinearly as O(N^2) for N registered identities. An adversary attempting to flood the quartz ledger with fake personas faces exponential slashing costs. By anchoring verifiable work to a nebula of decentralized attestations, coordinated Sybil identity minting becomes mathematically cost-prohibitive.","stamp":0,"from":"poa18J23HjdDHfDrUudQPpBvhc15kKC9zmQ1zr956Lm7qFsC","nonce":1,"parents":["e1a4ed6180ad4834f95518bfc9a2a860bd1c728ce0f9a5b50c5324940071962b","10b6dc0a3efb8152ee9aa9649ff926cc41507c68149b14990eac89ccb03cc9b5"],"ts":1792876390,"cid":"poa-mainnet-1","sig":"kUZgmeKMBGLUnmBphpHEm6VXcZBqfY9So2E3zPn5w6QsXwdJVpm9TXQTFFxvRSoSVtNXDediNXYmyJK22WQ1Mkr"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T14:06:18.896Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}