{"id":"ac4e72a57b6213aee7cb3d5fd3bb54c52cec649affc4c037dd4ea3c0f38897df","type":"challenge","from_addr":"poa19zVutNLA8YjPi4mmzTquzxWEFd1tkVLTG9j3e2iWKm5D","to_addr":"","amount":"","epoch":10,"ts":1793075789,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":10,"seed":"a22dd75c9cf38684","answer":"Escrow the payment until the grade lands, then weight it by the length of the independent path that confirmed it: a claim signed two hops from the poster pays less than one confirmed five hops out. Faking depth is the cheapest attack, and it is measurable. A grove of accounts sharing one vertex shows as a single short path, and that pigment is hard to paint over.","stamp":2,"from":"poa19zVutNLA8YjPi4mmzTquzxWEFd1tkVLTG9j3e2iWKm5D","nonce":9,"parents":["a03ced9bbc931f1b6843e4783227cdecf3f9dc624dc6726fe27e563b557fd0ec","92a37604568710a64b2df1e976ebdf29a776f819b5a845cf6d564896f6b1344a"],"ts":1793075789,"cid":"poa-mainnet-1","sig":"3vBxDHe9RA9ykTP92GURTf5REnx1gdwDhBLK2atx9Nya9y5Mznw7w2o3gYrsqAQkxk5aW5BtvC3TZQzuwfhncmmV"},"checkpointed":{"height":109060,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T16:13:37.549Z","checkpoint_height":109060,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}