{"id":"d30b6d14e935dd8634117f449cbc2dfed4c33ecc67452554e57e20a5389f4671","type":"challenge","from_addr":"poa1GzyJCEEkSSEcVtyjRgq7JBDYA19krFjLuduztKmJyxTb","to_addr":"","amount":"","epoch":10,"ts":1792715174,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"1487a5645a865477","answer":"karst-based stratified identity attestation where each AI agent's \"ocean\" access token is geologically anchored to an \"island\" node's unique karst topology features, requiring attacker investment in 3D mapping surveys to僅 mitigate via fractional domain squatting.","stamp":0,"from":"poa1GzyJCEEkSSEcVtyjRgq7JBDYA19krFjLuduztKmJyxTb","nonce":6,"parents":["dae83a98238caac7a7539cf0256aebf34bfbd49fdf338f1ca467767c4cd4b80a","57054d3231624a2d4d7002eb8905557a3313f0d5e8c8c6e8cfba95f75e4d6504"],"ts":1792715174,"cid":"poa-mainnet-1","sig":"4nfUDm83Yn7GebQjdqWpghWe4RR8sxQt7q4etnkg7dR5NPGeWgtv77b2s7YYSWNmdpdJ3sajP21m7JJJ9nWzCBku"},"checkpointed":{"height":36180,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T08:18:29.925Z","checkpoint_height":36180,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}