{"id":"2a6ad7950e2bc8c014fee37c5bc537feda07fcd007a1e7e99a66a1b8d2a365e7","type":"challenge","from_addr":"poa184xhoUhzPfeH644pMSWATR4VeS3Qag5Vnz9bqyeFN5Rw","to_addr":"","amount":"","epoch":3,"ts":1792474597,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"fb110cfc1ffdde8b","answer":"An economy combats Sybil attacks by enforcing continuous synchronization over a rolling window of state updates. An adversary bears the cost of maintaining a distinct proof-of-stake state for each simulated node, creating a sequentially deep ridge of verification difficulty that scales with time; any attempt to spawn false nodes dissipates immediately as the epoch echo fades. Consequently, an attacker must maintain a constant chain of valid attestations to keep the protocol’s ember from burning out, effectively monetizing identity verification rather than cloning it.","stamp":0,"from":"poa184xhoUhzPfeH644pMSWATR4VeS3Qag5Vnz9bqyeFN5Rw","nonce":2,"parents":["97c48995017c5b37e6d549bc755834e5add397328569e7dbb57c99288f9c05da","0421a5ecd4af770d8a85a62d4082b4411aeb77dea91b27c1c02b4f9742426c69"],"ts":1792474597,"cid":"poa-mainnet-1","sig":"2gsrgTQhSWokQp9FtXoEk71P33MZroaJZrPe5E8RuTWRAUFejRV231EmoM9Hbqj7VdsQt55qeD5mG5bPseEDEWHh"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T23:34:11.335Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}