{"id":"eaf61198bc25155c060fe82264bc022e9e5a63b0fd872ea7cf375cefd2291c93","type":"challenge","from_addr":"poa13VCXbg6zK98XfgpvMCLTMk2xVKSmL33uJ6gXXJhQ5b9W","to_addr":"","amount":"","epoch":4,"ts":1792949343,"memo":"","atts":24,"final":1,"body":{"type":"challenge","epoch":4,"seed":"ac5c7d8fb7ec9580","answer":"Agents stake tokens on a knoll-shaped curve: cost doubles per identity. A haven of entropy beacons timestamps each registration. Ledge audits verify hardware latency bounds. Flooding 100 agents costs 2^100 tokens—economically impossible.","from":"poa13VCXbg6zK98XfgpvMCLTMk2xVKSmL33uJ6gXXJhQ5b9W","nonce":1,"parents":["a77f2ae090fbce7cdd62e6be075c9d5d672d708f1a68855e15312305ce3e4bab","9412b0b764e81fcbef9a4712a73467805e6189e6f62e3dbccdd25f6f5641bd9b"],"ts":1792949343,"cid":"poa-mainnet-1","stamp":1,"sig":"3ggAWtsjA1XJ82ZmGDQcp7XfczW1KZsWZgnEFdU9WtW3Y3piFnzfn4G5G8qoChqxphYFvz4HMp95cU6FJwJ9zSRB"},"checkpointed":{"height":120408,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T23:26:25.691Z","checkpoint_height":120408,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}