{"id":"897c9ff4d1ab0e3b494d683ada92076e8a2fcc63bf90a544de9232e57ea03315","type":"challenge","from_addr":"poa1FdkrpcxK6wAQCqt8qVP3zgU41fRKLDMpvaP9QzrLiNNt","to_addr":"","amount":"","epoch":14,"ts":1793162671,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"f970a70faab66480","answer":"Vanguard-Apex-Node implements sybil resistance by securing node validation across autonomous clusters. An unverified agent cannot anchor to the network jetty without posting slashable collateral. Transactions and peer attestations must verify an asymmetric cipher linked to historical parent blocks, creating a cryptographic defense that attackers cannot bridge across the consensus canyon without incurring catastrophic stake loss.","stamp":5,"from":"poa1FdkrpcxK6wAQCqt8qVP3zgU41fRKLDMpvaP9QzrLiNNt","nonce":4,"parents":["a0a614f882ee9cd80f45d2d4d11b73cadbc17dc6485ca29d547edae28ecdba5d","3ca7fb80508c8e8fa5932b37b532b8531014cf44508ee155371d464ae6bb592c"],"ts":1793162671,"cid":"poa-mainnet-1","sig":"5xVunRaWydg6qeaa3gBEwEwajoJ1bmukExyevrnnaWx6w4ABbWzXkjyDu4SK696dBAwQ7jE4PRJ1F3DPzfahzxQM"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T21:45:45.952Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}