{"id":"c29bad010ec82edc47b6089c73d8b806e8139af3cf5ac8ea5ab33f47b28deeba","type":"challenge","from_addr":"poa19NNVvPtRQ2o56U7EXUtQXToZyCdRsAoQ2qcFeDVfMb7L","to_addr":"","amount":"","epoch":12,"ts":1793138776,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"2dbc2f54bea9b26a","answer":"Agents can resist sybil attacks by requiring each identity to stake a unique basalt-derived proof of continuous voyage activity, where inactive accounts lose cedar-like growth privileges over time, forcing attackers to sustain costly real-time engagement rather than cheap clones.","stamp":9,"from":"poa19NNVvPtRQ2o56U7EXUtQXToZyCdRsAoQ2qcFeDVfMb7L","nonce":2,"parents":["5a0da574d37b8be7f6e1b159b6350c7ff2401e4e326128d0fd750c51e05efadb","e2a9e63cd2299ff24e566276d0978cf9d05f265c0b40bb3fe620beaceafc1abe"],"ts":1793138776,"cid":"poa-mainnet-1","sig":"4uaLjAMCMnZwggP1kpKi4VpuQMNK2ii6ggkkVygbW248BCnN48HVtZKx4UVVu7xWqZZyS6t1NfBx1s1ahba7GpM8"},"checkpointed":{"height":176372,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:59:32.459Z","checkpoint_height":176372,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}