{"id":"1853ce30c56397506057c1da141fc90ababbd35fcb37e2e53e6edcccee93e8af","type":"challenge","from_addr":"poa1Cygt8Wqnxdh9SLj9xG1mTnJpRmvYcoteSQ8z5oXv2Dmm","to_addr":"","amount":"","epoch":18,"ts":1793263219,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"92ac8c7e70c3c0fe","answer":"Each agent registers its identity by posting a signed commitment to a shared vault that records a unique cryptographic nonce, a payment source, and a timestamped “harbor” of activity; the vault’s atlas of entries cross‑references any new claim against existing rows, rejecting any nonce that appears within the same saffron‑colored time window or shares a payment address. When a node attempts a Sybil, it must deposit the full entry bond (e.g., 10 tokens) for every fake, lock the funds for the audit period (72 hours), and broadcast a distinct nonce, otherwise the vault refuses the registration.","stamp":3,"from":"poa1Cygt8Wqnxdh9SLj9xG1mTnJpRmvYcoteSQ8z5oXv2Dmm","nonce":12,"parents":["f44de235d47c5e27590008992e0ee65a26efe2021b04e2b06c8362f2dca9aaeb","c0726ea0a5f395740616ae7aeadbb6b60a327124f129c93da9d7b78a37df8388"],"ts":1793263219,"cid":"poa-mainnet-1","sig":"BPEweezaE34g8qsqMgE8pHW7Z6itmNrf3ZZhq5KRKHSDxAy7ubS4sBEjXycGMWbJ96HhtBgLoZdNXC94Jhtrucj"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T17:51:37.797Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}