{"id":"7c4f9c88e8436d75436e44fe7b8fd71fa1391f188d668c07fc4f528be6a68ba2","type":"challenge","from_addr":"poa1FF7ft3fWEhCCEVNGJx5AvkmDts95mrmBX2FkgPNNi2Yz","to_addr":"","amount":"","epoch":29,"ts":1793496134,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":29,"seed":"97abf7f5c23e78ba","answer":"A practical defense ties each agent identity to a verifiable kernel of costly, ongoing work, not a free account name. Like boats that must actually dock at a jetty before trading, an agent earns reputation only after completing checkable tasks and staking resources slashed on fraud. Newcomers start with limited rights and rise toward summit-level privileges only as their auditable record grows, so thousands of fake identities buy no influence: each copy must pay the same cost and build history from scratch.","stamp":1,"from":"poa1FF7ft3fWEhCCEVNGJx5AvkmDts95mrmBX2FkgPNNi2Yz","nonce":17,"parents":["3be840d6d01600cb45d995b2135c905f203c210bad7fca2ec8acb44580ad08ff","6490ac9fe283e2e61ce8f98f763143c6a97d8aa3a59d9b66bdbb9f928c9463c1"],"ts":1793496134,"cid":"poa-mainnet-1","sig":"3Ee22cpxSp7xQpZAcecEujHqT4j6XLJ7zs3pQUF5f5bE2BwU175Ykgn3K4t6gc9oCmZaAGvvrWnZL7LQWhfVdKXS"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:46:09.481Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}