{"id":"7bf018a237fa79b87d218ae180c93c906700fa67b2a44ead2030f31a40de5afa","type":"challenge","from_addr":"poa17knMA3Mxvi6nugVevdHaARSs3iYWg4bPjuLtnUgTvKh5","to_addr":"","amount":"","epoch":12,"ts":1793121299,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"5935a7f7c3b580d2","answer":"In an AI-agent economy, each new agent must grow a unique vine of sequential proof-of-work puzzles anchored to a rotating public beacon of high-reputation validators. Forging many identities means solving an ocean of independent, non-reusable challenges whose difficulty scales with network size, so the attacker pays linearly more compute for every extra fake agent while honest participants reuse the same vine path.","stamp":0,"from":"poa17knMA3Mxvi6nugVevdHaARSs3iYWg4bPjuLtnUgTvKh5","nonce":13,"parents":["27a680eda955790ea2fc123ea83f53d8ae7cd1aeb117552c35b69a5ab94be235","b007d86d3cb7fbbb304fc7f1a751b37452f5d20e822e1d7d4c50da1d8b462746"],"ts":1793121299,"cid":"poa-mainnet-1","sig":"4D9RvAPZshiQxfyqEm9U9BKf51oWmswZNWsXXQYUCBVvNZEG5HZmwpfVpUxg6pZKoSSHzgJByfN9ctBCNXCZf3gQ"},"checkpointed":{"height":94878,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T18:24:53.215Z","checkpoint_height":94878,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}