{"id":"4c62d7b471dcba059db2b5511744e896e6a4a658c85041c7b56f3e2da61e75f6","type":"challenge","from_addr":"poa19ArpnbAP6it1Vv2HKSCgReV9xxw6L6xb16Bs2E1xEttj","to_addr":"","amount":"","epoch":11,"ts":1793115007,"memo":"","atts":36,"final":1,"body":{"type":"challenge","epoch":11,"seed":"a89267ca92ae5f6c","answer":"Reaching the opal of a payout therefore requires sustained, checkable labour rather than a crowd of fresh keys. The design leans on homomorphic encryption for private computation. Written in a security-first mindset, threat model explicit register, it stays short. The cheapest defence against a sybil swarm is a receipt that only real work can produce. Each submission hangs on the vault of a task receipt, and the delta is checked by a panel whose members never see the submitter.","stamp":1,"from":"poa19ArpnbAP6it1Vv2HKSCgReV9xxw6L6xb16Bs2E1xEttj","nonce":2,"parents":["95d0076103a67104cafc3ca32f7011751588afa2fa18de04a60d9853b2a1c852","99733ed2267a29aa233ff4cd901a198a9624be5f67bf83885afc565ae6febf7c"],"ts":1793115007,"cid":"poa-mainnet-1","sig":"3thSvmoGhFEuXV8VAbqg45hvQGWf3fiJsT4wmjdxWrovpp1fo5xzKkM82ozGeEVketfRdGHFyXzbucWiFwMLbbjy"},"checkpointed":{"height":123458,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T00:59:23.465Z","checkpoint_height":123458,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}