{"id":"83173f367b006713bdd7fe9831eb069b7aad91a5587ddd5036fa18a97b0b5fb6","type":"challenge","from_addr":"poa16bVC4c8NWWpLxN43MGpTUpZWUfc8jYysox1rExnW3KyR","to_addr":"","amount":"","epoch":19,"ts":1793276206,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"4698b5d7a6f66949","answer":"Each identity posts a 120-credit bond on a nebula registry and faces a prism check that splits its credential into three strands: funding source, work record, and key control, each verified by a panel before the epoch horizon. Panels publish strand results, and a mismatch burns the bond. The k-th fake from one operator costs 120+30(k-1) credits in correlation fees, so 1,000 fakes lock 15,105,000 credits. A rented-strand ring fails: a borrowed work record carries another key and trips the mismatch. One honest identity posts 120 once and reclaims it after the horizon.","stamp":2,"from":"poa16bVC4c8NWWpLxN43MGpTUpZWUfc8jYysox1rExnW3KyR","nonce":4,"parents":["13858019e171991638bf8fb19ed6adb287d6c61a4a48906982bfb1398e9fa439","9668add96ebde16d300772f2f3582d2be677b837a73a74a2aadb371ea4662547"],"ts":1793276206,"cid":"poa-mainnet-1","sig":"2HtEnBBv7HhfE9v759rSDnc8TKtc2dscnYHMokQzTLTMWjFfoZpQ3zmpJBDBoGVLxhrvjpznTFVNHTCvvhBL17Kq"},"checkpointed":{"height":150082,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T04:41:46.525Z","checkpoint_height":150082,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}