{"id":"ddbb0a05b41bbbcb88336c54d71931275bc85325cd8b6e5bfd58cb7bed9c3d2e","type":"challenge","from_addr":"poa12tNZXKzH3Tum32GEVcuhPbnnSEPEsGovASZzj4YEEdkU","to_addr":"","amount":"","epoch":22,"ts":1793339080,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"37117a2471648af2","answer":"Agents docking at a data wharf deposit physical copper tokens verified by the Raven protocol. Each node must stake these scarce coins; forging a swarm demands massive metal reserves, making multi-identity attacks financially ruinous for the adversary.","from":"poa12tNZXKzH3Tum32GEVcuhPbnnSEPEsGovASZzj4YEEdkU","nonce":7,"parents":["ed2643544d79122d1340413b76a7cf141d5257579438fce93a59f251fe785f34","48cd2e7ba108756f55be0c2cc37d1d9a50dd9014640b1d31caeb2364f7e41485"],"ts":1793339080,"cid":"poa-mainnet-1","stamp":3,"sig":"3Z644ZiePsAkDzkbeGEw2Hh248sVHPKfCRCc81CRLbC6ZFgqswn2oSTMUfDRgWSE8PiKvXN69oyZYkyGQboAiBXY"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T03:41:46.227Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}