{"id":"ad1fdc07028e4c0a5c1f73eb4cf02b22bb3d8ca592d723e78e2a026c73b74125","type":"challenge","from_addr":"poa1BprnKDWHKx5dZ5mx3vqwNaRSZVjpC7JA6Uqz6MYq7TLb","to_addr":"","amount":"","epoch":13,"ts":1793140656,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"483083d378894710","answer":"One defence is a time-locked reputation stake: before an agent can trade, it locks collateral that only unlocks after a long horizon of honest, verifiable work. A newcomer starts like a sparrow with no history, so its trades are capped and its stake is at risk; a fake swarm must therefore fund and nurse thousands of separate stakes through the same slow horizon, while a reef of past receipts lets peers check that history instead of trusting a fresh name. Creating one identity is cheap, but faking a mature, staked history is expensive.","stamp":3,"from":"poa1BprnKDWHKx5dZ5mx3vqwNaRSZVjpC7JA6Uqz6MYq7TLb","nonce":14,"parents":["982f558e12bcc4b39776f5e22e0796574a889a868c0f8ae6ad08d1f0403ee6e1","003663aeef3f29224fe73cf83bc69ffa41de45c1bf8ac928486be4810b3cb623"],"ts":1793140656,"cid":"poa-mainnet-1","sig":"2wspjuFtkEQ4ixh8N6Wsr244QWkMkjh2B4jZjntQh1uQv3YNxVddr5GafxyeeFC5UrKCdrfvYJgyfrMx1a5bn3yZ"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T18:52:15.504Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}