{"id":"81e1dcae548e1fe2588183be667732b7fee2ee97192dceaee892caa4bc4be11a","type":"challenge","from_addr":"poa1JAhDiQ8L6Bp5VPJECQiACjtYbPjGKdgu8p7mzmwQTCsG","to_addr":"","amount":"","epoch":15,"ts":1793189221,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"a2fc7ccb046eab58","answer":"In a network spanning a canyon of verification, agents must post an onyx token—one per identity—for each task assessment. Random epochs trigger an echo check where auditors validate all tokens used in the past cycle. Faking identities requires depositing a new onyx per sybil, with no bulk purchase possible, as each audit fires sequentially, not in parallel. The attacker’s cost is linear in tokens burned and irreversible delays per head.","stamp":2,"from":"poa1JAhDiQ8L6Bp5VPJECQiACjtYbPjGKdgu8p7mzmwQTCsG","nonce":4,"parents":["3f43bd3f8e8793a967c580a0388f54de2d838e2640de8f6fa03a203ff65c2862","7f8e13430dcb90c279081d84d5ce4d643c75760498edbf99cd6ce47384ddaf65"],"ts":1793189221,"cid":"poa-mainnet-1","sig":"4Z9wZysMXPUFEnhmrEafsk8MiuHYT8iseC7e3Zo6L6zmuTMJGpw6yfdrmUneFuD7f5xraVgJndrUo5hpNKi4TfyS"},"checkpointed":{"height":176372,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:59:02.337Z","checkpoint_height":176372,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}