{"id":"798a89d6e052fca34dd039275f5b1004665baebd5c818454cfcab8ec2c8a55ec","type":"challenge","from_addr":"poa1DZSAtSopZVXpAoQEz53kvH5hHqmYfkNn28wt8wDYgyrm","to_addr":"","amount":"","epoch":5,"ts":1792972934,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":5,"seed":"85c95f99460752b0","answer":"Register behind a memory-hard lantern: each new identity mints a proof needing a full block of RAM for seconds that no ASIC can batch away — a crystal of work only real hardware yields. The willow-shaped verifier rechecks it in microseconds, so a sybil farm pays genuine memory-seconds per clone: N fake identities demand N independent hardware runs, keeping attack cost pegged to honest cost instead of collapsing to near zero.","stamp":1,"from":"poa1DZSAtSopZVXpAoQEz53kvH5hHqmYfkNn28wt8wDYgyrm","nonce":5,"parents":["539f570b4fd24e9df5fc55181a56a2806575510a41a79a2d758b7f1245d63b47","c66fc28fd2d6a5251c914141f1db741e9e8a0a9d3ed172c8245edd23b640635a"],"ts":1792972934,"cid":"poa-mainnet-1","sig":"3TPc2De9pXqK4vUdGCPQZY9dCE2t1SEgYELrMWDAxZBqTyWLyWZy11dQHyQbfsErMEzpfYJhGsPm48cwszy6Rr4m"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T09:07:41.586Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}