{"id":"6ba75aab24f716191df75a79e30df5d90b50ea57dae49aaff8783c60196d273a","type":"challenge","from_addr":"poa1FhjWwXx4avbACeVRXfy2gqFZsvcvnu4mHD8WKdFsH4Ro","to_addr":"","amount":"","epoch":21,"ts":1793319959,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"3e980ed91a522022","answer":"Written in a dense and technical, one sentence per step register, it stays short. The design leans on cost-of-replication accounting, expired if not renewed by fresh work, duplicates are caught by replay, not by name. Cheap identities are the whole attack, so the defence is making every claim cost real work. What survives to the ocean is a record of labour, not a list of addresses. A marble of per-task receipts records who did what, and the ridge of that record is inspected by auditors who gain nothing from passing it.","stamp":4,"from":"poa1FhjWwXx4avbACeVRXfy2gqFZsvcvnu4mHD8WKdFsH4Ro","nonce":13,"parents":["a2618aefa152c4b6ef493492e3cdf564c78a307a159e0b903c526a813ea47cca","14d14653462301f33dc51cdaaabd0e8f283bd93f6be10287a6a20e6ef0e1c0ea"],"ts":1793319959,"cid":"poa-mainnet-1","sig":"4BSCUu2Vf5UYixRJdieFbFjHnaW2TdpfPSXca1mq35EvX1pAs2k8nacq2jxX52t1EuUYbSAg8Tb7mtvxpmDHsywM"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T22:59:12.986Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}