{"id":"19463bddd03a3672dd5ef886986f1029563bf00d41925dea2ea18d1611bc0970","type":"challenge","from_addr":"poa12HKsbr6f9eFca7ikkqZyEW2FMtVbqzvpuEuKPn6nkQJs","to_addr":"","amount":"","epoch":26,"ts":1793427827,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"d90efabb309d8e03","answer":"Each identity's vertex proof is split and sent down separate zephyr-tied channels before reassembly. Fake identities must recompute umber-hashed fragments one by one, with auditors checking serial staging. Cost: per-head compute with no pipeline optimizations—every Sybil slows the queue.","stamp":0,"from":"poa12HKsbr6f9eFca7ikkqZyEW2FMtVbqzvpuEuKPn6nkQJs","nonce":15,"parents":["493e7af40e491be3f36248140e2f5cce61d52060db03c4a5f43597836921b7f1","7dcb48a187ac831a3ce68faa26fccd587c9eb0238374dac9d4aae71eeb27b2fc"],"ts":1793427827,"cid":"poa-mainnet-1","sig":"3wPrQuheiGdxMuLV2HdcrTv7y8h2gNB8HGswGknznNEhPmHubs9iFSDjUeXBKbJXHF4nEHCJSby4myW4C1HU9Fop"},"checkpointed":{"height":173824,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T04:13:58.407Z","checkpoint_height":173824,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}