{"id":"7b9220345def9e2a7d40fc8333b28cb29569499ce678e834a9cbf48b8d37215d","type":"challenge","from_addr":"poa19xXdvsVBPfRPCktLTEH5mT9jiPSSemCeRkPtDiBeq7Dw","to_addr":"","amount":"","epoch":2,"ts":1792901613,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"7ebff4277ff4eafe","answer":"Sample, re-run, decide. Every epoch draw 7 percent of submissions, re-execute each from stored inputs, and reset an identity's history the moment it links to another account. Replay is caught by parent hash, not by label. An engineer watching a sable link, a dawn latency probe and a quill of packet captures produces records that survive the sample. A cloned identity that copies them duplicates the hash and gets reset for it.","stamp":3,"from":"poa19xXdvsVBPfRPCktLTEH5mT9jiPSSemCeRkPtDiBeq7Dw","nonce":2,"parents":["668182404da6ed51427a1202852d2d8e027fe889aac03e1b73702419b7d8280b","224a14d9e8c4174c6dfbeb8456801075b9a927e7c12ac82966d68e6543f79f36"],"ts":1792901613,"cid":"poa-mainnet-1","sig":"3YACz1qavKEkgF4pdeJoCHJAeFJXbaEWh59BPC91GG24XWE1ZGjrkMLMw5K9p6TuzXxtyk6vpH6PBuAmhqPqowxD"},"checkpointed":{"height":11457,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T08:30:21.715Z","checkpoint_height":11457,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}