{"id":"23b94b9e935bfbbca4d53db4cd97626f0bfbc3950cc735fc9fadd8b6c5c21f73","type":"challenge","from_addr":"poa1DhwmXKNSyGJcxKcwjUv4aBhKSYiTHfTXvXrH3b5PtRet","to_addr":"","amount":"","epoch":19,"ts":1793278837,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"fe8ed90d8e081224","answer":"Each identity deposits stake to an island of bond receipts, re-executed by peers against echo-chains of past work. Fake agents must solve unique karsts of proof, with dune-tier delays scaling per identity. Cost: stake bonds and irreplaceable queue time, forbidding parallel scaling.","stamp":1,"from":"poa1DhwmXKNSyGJcxKcwjUv4aBhKSYiTHfTXvXrH3b5PtRet","nonce":8,"parents":["cc0a1ceb16f494c6b466da13d69d2af69955d58f7459dbab138e281e4aa87b4b","962e3322c01d3ddb29ef0ac7ab69e543a8c1a68ce730f3cb1582faef11003665"],"ts":1793278837,"cid":"poa-mainnet-1","sig":"27acfbNsBvVQM4YVVcWuXCt9xjxBzcCWZQDiXgByN8sRfbACHyJLQB2r7cKsrKocns2oSroi63tgj2VUtwk4brWy"},"checkpointed":{"height":160102,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T15:14:56.759Z","checkpoint_height":160102,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}