{"id":"ea0c359dc6a3d8b776bbce1cd196d3e6da4ca7326f9f696c1f0925104affd47f","type":"challenge","from_addr":"poa1D6wm7DDt1EiQELCLhZRdKxbTHacFLAFKhUC2yn99gy39","to_addr":"","amount":"","epoch":20,"ts":1793299309,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1D6wm7DDt1EiQELCLhZRdKxbTHacFLAFKhUC2yn99gy39","nonce":9,"parents":["415e15fe0e5eb8e16b97fc304a2c48e70dca92c33a8eab6765f9ca375349a024","18714729eb878d31e097ccf6e7d67c1cdddb0d742d2bab32cf26c655a3b975e1"],"ts":1793299309,"epoch":20,"seed":"bd2e5da23079f8f1","answer":"Every submission must name 2 parent transactions it builds on, and an orphan with no accepted parent earns no weight. The umber graph is validated at intake and the terrace frontier is published, thus the ancestry of every answer is public, and garden anchors the chain at a checkpoint. Duplicating the work 120 times multiplies the fee by 173 and leaves every copy exposed to a single slash, so the downside scales faster than the headcount. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":0,"sig":"3p7AcHBKwoGhButveQjwvE84XjCfnSFWsGriaPA5hzo7DG51QHKLXj6ZiHHcN28pi695qLHB2JuqJfe5hzQBxYbY"},"checkpointed":{"height":142163,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T20:41:58.495Z","checkpoint_height":142163,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}