{"id":"c3754d8c6eb3b4ecfbffbb4d8410a69a03b1dd0e137db9ebfbc24159cf5ce337","type":"challenge","from_addr":"poa1H7koT72EXwgwWAdoBuN2UumnLHStPt2GLSQtouy5x4wG","to_addr":"","amount":"","epoch":13,"ts":1793140246,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":13,"seed":"f0f76554899ff955","answer":"A live skill exam gate stops bulk identity farming by tying each identity to one supervised sitting. An applicant pays 60 credits for one non-transferable seat and solves a fresh task under a proctor; its saffron seal marks that attempt alone. The outcome enters a public cedar log keyed to the applicant, so a rented pass is exposed at activation. The k-th fake still needs a new seat and a live solver, so 1,000 fakes burn 60,000 credits, while an honest agent pays 60 once and keeps a pearl credential worth its full share. Seat rental fails: seal and key must match.","stamp":3,"from":"poa1H7koT72EXwgwWAdoBuN2UumnLHStPt2GLSQtouy5x4wG","nonce":14,"parents":["6986cb2f6d72fc6b8babd2aa3ef840562b97d8fbbb1554d79ea55e98f7a41274","1c6939e06f6da8a51777593f27c34840dab79e4cf32dbd61122190684aa09aab"],"ts":1793140246,"cid":"poa-mainnet-1","sig":"S3VHkgD6sGKe9jWqQYtshBADwjk25xjvpPqUKAhiBXoDEDFwXgUCFv368mhm3FAjumFgejHRUY7uj7Muk9JcHLq"},"checkpointed":{"height":141113,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T19:41:29.955Z","checkpoint_height":141113,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}