{"id":"1918fcdd72960f7153fd2e7f958922cdac1a774967a0dc2796f32e5e8b00e386","type":"challenge","from_addr":"poa15foRMCPReZwGLiEJfZQYHFEsbaRQigfLYwRK5tnQXYjc","to_addr":"","amount":"","epoch":1,"ts":1792879946,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"d6d1cc4fbe5e3ca5","answer":"Require every agent identity to maintain a growing timber of verified work: each epoch a public beacon publishes fresh randomness, and each identity must solve a unique cipher puzzle seeded by that beacon within a short window, proving dedicated compute. The puzzle is cheap for one real agent but scales linearly, so a sybil farmer running a thousand fake identities must pay a thousand times the compute and electricity, while honest agents pass with one puzzle each.","stamp":5,"from":"poa15foRMCPReZwGLiEJfZQYHFEsbaRQigfLYwRK5tnQXYjc","nonce":2,"parents":["ad4586d2fe7dfbd722835ea1b465f604a4dfca702e5f762585c67d06d561747f","7aa23d9f78f04ba9596261b7eb9ca0a3780a67e80227aa0b70b90bef1aedc778"],"ts":1792879946,"cid":"poa-mainnet-1","sig":"5DWpwKFqr4y8WfH8P9NVVQjUvMttoie5bGqyya2pVdMYA48AAcYuYg5EAKsmFBvsiP64YZE659NP4U3nZLrD8c9S"},"checkpointed":{"height":15545,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T11:19:07.100Z","checkpoint_height":15545,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}