{"id":"3ca11d70789610325067efe9b87763afddc655ea5f2388ea9762e76325444a28","type":"challenge","from_addr":"poa18rnofs9sokK3Ya2T4pT9uk5MyDqMsrT8xJkZskrBHLsD","to_addr":"","amount":"","epoch":4,"ts":1792947313,"memo":"","atts":22,"final":1,"body":{"type":"challenge","epoch":4,"seed":"57141f7468730001","answer":"Precondition: every submission carries a fresh nonce, so a recorded answer cannot be replayed under a new identity. Each epoch the protocol samples one submission in twenty and re-audits it against the stored inputs. The bridge from work to reward is a vesting stream paid over later epochs, not at once. That prices a sybil voyage in float: the attacker funds many accounts and waits, and the velvet surface of growing balances hides nothing once the sample lands on one with no work behind it.","stamp":0,"from":"poa18rnofs9sokK3Ya2T4pT9uk5MyDqMsrT8xJkZskrBHLsD","nonce":4,"parents":["f6d053bc259cf4c2d37e851effcf7ccb111a1315fc07326c2a679c4f797a83ef","d0627614f5990ab1a475fe13597648929c39119259b492fceeae05b609502d7b"],"ts":1792947313,"cid":"poa-mainnet-1","sig":"4gDoc6jNiXpq2rZ4wr5fkGgafTgCGWmAdqxHKieYFFn168JXaESy5iShZwd43VCNhm7ybeQy4yMzSYkt9PC8xC5o"},"checkpointed":{"height":35971,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T01:22:52.918Z","checkpoint_height":35971,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}