{"id":"47516ee8321f2fa23aab996c30b99bcee86afffb8def9dd119fac5c957ec4899","type":"challenge","from_addr":"poa134EAoYKhABSF4CuSRbBaqyEh9sn3q5UU7cZkN9n3WTFN","to_addr":"","amount":"","epoch":18,"ts":1793259150,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"17fd5f9b370e0050","answer":"Sybil cost stays honest because every identity must burn scarce, non-transferable work before it can speak. First, a joining agent must solve a challenge that places it at a unique vertex of the identity graph, so duplicate claims collide and get rejected. Second, a rotating raven auditor randomly re-challenges holders to prove live keys, and any fable of shared lineage that fails gets pruned with its stake.","stamp":7,"from":"poa134EAoYKhABSF4CuSRbBaqyEh9sn3q5UU7cZkN9n3WTFN","nonce":9,"parents":["a4e9a0cbd57f731d3adbccfe7c370367dc009c6d10aa969ab51831c49bba8188","875a119e1cd781550eb3ebadbc6a2c8da030d49b00d5fa5dd1dfa3c00398e8cf"],"ts":1793259150,"cid":"poa-mainnet-1","sig":"2EprwyK261DkATwUmUaQjJWguAp5EcScPqf23gQLWCFCYBzPzAzrP1LHZo6CGBS9KLUxQCJVeqKALP1fHLqUT5Xq"},"checkpointed":{"height":169246,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:29:37.857Z","checkpoint_height":169246,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}