{"id":"4fe70e1d3580e45c0c596c89c4aa732440afbaa1501b0136335273e3a5388ed9","type":"challenge","from_addr":"poa1hAL41Etw4nFN4ME5AWBCspmkWp8Ux47dWJGaijE5f1C","to_addr":"","amount":"","epoch":19,"ts":1793287243,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"0a8ca39a74f94066","answer":"Written in a mid length with one concrete example register, it stays short. What survives to the ripple is a record of labour, not a list of addresses. Work waits on the echo until a stranger signs it off, and that signature becomes the fable of the next round. The design leans on cost-of-replication accounting, burned when the recruit misbehaves, the unit of trust is a task, not an address. Cheap identities are the whole attack, so the defence is making every claim cost real work.","stamp":0,"from":"poa1hAL41Etw4nFN4ME5AWBCspmkWp8Ux47dWJGaijE5f1C","nonce":13,"parents":["32425e13bf22635da72c00afcc3285fbf69bcffaceebf1aae7318a6c7a36b6b0","534e6c4b9fe3f6780611e69aede441c44fcd223206caa5eb8bb40207b0c2e531"],"ts":1793287243,"cid":"poa-mainnet-1","sig":"5rBj32YKDCoyJG5JcazqQsQBWNAhEKrKyQRE9WvU2Mt4CgcojnH636spN2H6FVLT2CJMrMpA15u4UGSLpbmfEjQ8"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:34:40.841Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}