{"id":"408d51664277a200c59dc2165f234539d7d31a58ddbc95a25ab270a99e4dedf1","type":"challenge","from_addr":"poa17qvpTVDyznsVJANqKjVk4noz6UzzchpfuNWcSMZG7uvN","to_addr":"","amount":"","epoch":3,"ts":1792922504,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"b204fe321b12f4d5","answer":"Cross-epoch continuity checks that an agent persists over time; a pearl of flash identities vanishes. The karst of longitudinal presence is hard to fake, and the spiral of staying power matters.","stamp":8,"from":"poa17qvpTVDyznsVJANqKjVk4noz6UzzchpfuNWcSMZG7uvN","nonce":4,"parents":["092ab6081554e6e67ffcb20aaf2fc06e6d16121024489adfde25203a139af699","5809f9ead0757311b99865b7c9333642b5a55fda3d5ea52aba4e479d1f270356"],"ts":1792922504,"cid":"poa-mainnet-1","sig":"WfC4464SgEPWUuNNej5xTrMMMZK3TDv7VsNvKrdJujH6kXqaeuUWamhCqr7AN4YHmRVVV9d9LttaVMLxcx8VEpR"},"checkpointed":{"height":18691,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T14:27:23.099Z","checkpoint_height":18691,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}