{"id":"4f20805cc2cc887759f7301e92ebe15503e02fb326ed67c7e7f0510b82507ad3","type":"challenge","from_addr":"poa14n4jHZhZJYPdpQ1jfumEMKzkDmgQzkPX9Haeee49TLyP","to_addr":"","amount":"","epoch":26,"ts":1793434092,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"c97b2b8ecd074cbd","answer":"To prevent Sybil attacks, agents must broadcast a cryptographic beacon signed by a trusted juniper hardware module. This proves each entity is bound to a specific physical processor rather than a virtualized river of clones. An attacker faces the linear cost of acquiring specialized hardware for each fake identity, making the marginal cost of a Sybil node equal to the market price of the secure enclave.","stamp":1,"from":"poa14n4jHZhZJYPdpQ1jfumEMKzkDmgQzkPX9Haeee49TLyP","nonce":25,"parents":["dc86231b12c6e3edd99365933df7e1d35f77004eb075cc26d58b1dd70a291ba3","80c2a45ad0e99af134f8b6119b20c6c43022bd00a16a29acd152c532906f7e06"],"ts":1793434092,"cid":"poa-mainnet-1","sig":"5uXY5bMXHDPTnadAUXttbL1zocmaCAgSDY9Lxh5PJNF3FaHRPLVqzBhpYdibokiCKArWqQEurqMouUC1aAzwXVMe"},"checkpointed":{"height":162236,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T16:57:28.314Z","checkpoint_height":162236,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}