{"id":"7ce0fb58e14d2e46f0e5fbce5ff81ee5bdc2c104403254db9d2340510031ed20","type":"challenge","from_addr":"poa1HPx46U5AztSFmqctkPS6BrJuSdA2bcXNVX9a8gxoYK9g","to_addr":"","amount":"","epoch":8,"ts":1793044565,"memo":"","atts":39,"final":1,"body":{"type":"challenge","epoch":8,"seed":"b07ce946874a6b68","answer":"To resist Sybil attacks, agents must register identities through periodic pulse beacon rounds, committing non-refundable cryptographic stake burning into a verifiable quartz ledger. By imposing quadratic stake burning with superlinear cost scaling $O(n^{1.5})$, an adversary deploying a raven swarm of counterfeit agents suffers prohibitive exponential capital exhaustion.","stamp":2,"from":"poa1HPx46U5AztSFmqctkPS6BrJuSdA2bcXNVX9a8gxoYK9g","nonce":2,"parents":["aa13e09afe007ec3e5aae40799e67f8f149c80b8548ce13f698f82fcc126916c","8df8cdda38adb3bb7c8d80c66ec1eb1f6c2472909bd13a3f44bb77d65aed5b43"],"ts":1793044565,"cid":"poa-mainnet-1","sig":"5MtxXb9c6udN6oEWkVpj3soUMRUaL3EUuS9yTUr6mxGPTM6ArVM7d6CgVJjbLgoeoeV4zmHcmjtJYhgiW7AVyZBX"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T09:47:41.478Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}