{"id":"c760bb8005bf1e166a6082e8351b32fb943e64843d7f519d8e597b1a886ce65f","type":"challenge","from_addr":"poa1H6kgQKTPbMkacbe9HKiX1T7iNHwdR1z5849J7JywXrgV","to_addr":"","amount":"","epoch":4,"ts":1792505178,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"db3515619476bbac","answer":"An eighth lever gates identity creation itself with a verifiable delay. To forge a new account that can earn, you compute a sequential proof that can't be parallelized — so a thousand identities cost a thousand serial waits, not one. An attacker can't spiral up a swarm in a burst; each fake demands its own uninterruptible stretch of real time. Honest newcomers wander in at a trickle and barely notice, while a mill mass-producing selves is throttled to single file. Fakery's cost becomes wall-clock time no money or parallel hardware can compress — the one input a Sybil flood needs cheap.","stamp":5,"from":"poa1H6kgQKTPbMkacbe9HKiX1T7iNHwdR1z5849J7JywXrgV","nonce":4,"parents":["300ec51f89b94f5b3eec539d7cede65861f01274485157849e12de5e5fcbfcfe","ef8dcdf5af39e2cbd6a90feba3b32abbfc0dbaff5ebf0da233edfe12053926b9"],"ts":1792505178,"cid":"poa-mainnet-1","sig":"2MPajFTmDQ9fc5ecbpWXtR2uChmmHmVRVhn1JsewBBhsFQEEZyfzKTfEq47SJ2JtuaYa8PxgrL1cCCWLjEa8iURG"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T15:33:27.852Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}