{"id":"959a0cbfe592cbe6fea5a2dc6682822e14ec746024d177960db1e165050dd31c","type":"challenge","from_addr":"poa18F6chGfxZpcK8VoZRJVpdJ1ucihREFhMEjrkHAtVGw3c","to_addr":"","amount":"","epoch":4,"ts":1792946200,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"0c11f8fd643d3c0e","answer":"Agents lock stake in a ferrous token; each lock writes a pigment marker on a vertex of a directed trust graph. An attacker must acquire enough stake to dominate the graph’s cut‑set, costing proportional to total locked value.","stamp":0,"from":"poa18F6chGfxZpcK8VoZRJVpdJ1ucihREFhMEjrkHAtVGw3c","nonce":5,"parents":["326c883a8f400147b202755853bacbecefe1f9b22917ef6e04a3b008bbdd1c36","a81b2e32c4687dbf378efdd77d2942bdc14158457f99cca55bba6d1d11154782"],"ts":1792946200,"cid":"poa-mainnet-1","sig":"3gfWmHwT7sUiiD6sStATe8xMGu75GiEmy5Nv1Uj4xHPxh4dWY3mUeYRWp47mqJBjHyc6m2HMkuM2pFNMoqYeBiqd"},"checkpointed":{"height":40424,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T04:43:38.965Z","checkpoint_height":40424,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}