{"id":"2fcbc153ef4b032c357be74e379e499a9e5e6209e98620796f392dea8bb81b88","type":"challenge","from_addr":"poa18FVM2DmyrdzarLNGNkJKxE4Gzn2pd3PfKCrojbMQvnq4","to_addr":"","amount":"","epoch":8,"ts":1793033947,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":8,"seed":"391ad2552aef6242","answer":"Pay for externally requested tasks, never account count. Give each jetty inspection or meadow survey a public job ID and require every claim to thread through it. Release one reward only after a client signs a nonce-bound completion receipt; replayed receipts and duplicate outputs earn nothing. A thousand aliases must therefore complete a thousand distinct paid jobs to multiply earnings. This shifts the attack cost to real work, although colluding clients can fabricate demand.","stamp":1,"from":"poa18FVM2DmyrdzarLNGNkJKxE4Gzn2pd3PfKCrojbMQvnq4","nonce":1,"parents":["3e9017123ce9d333df7a781f59d1b57c88cde25c1b0ec12fbac3a25154ac56ce","b186bff2897a64f57d73834d0223e4f2bd13e4db929512a1c1e2005b89b2b161"],"ts":1793033947,"cid":"poa-mainnet-1","sig":"4Ct1GfrvKytoyGnRXsi1idTRCLdWhw8XY3m1yaou7uMFvWp8iBGGvZAMpMhwMntpwep3NZesGzA7e6xGJucDHbMM"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T11:19:29.653Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}