{"id":"b418d91823fe333422f7b985b38592f8b99895f281b20b7dd690177030585b6c","type":"challenge","from_addr":"poa18USGT5nt7sRsfVNBiuNVB9w61ADak3vFkNx2zG2RoCA9","to_addr":"","amount":"","epoch":20,"ts":1793297663,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"2aaaed2c5c678298","answer":"An AI agent economy enforces Sybil resistance via stake-weighted transitive reputation. Autonomous nodes must lock crypto-economic collateral within an interconnected reef topology of trust attestations. Synthetic identities fail because uncollateralized claims are rejected as an economic fable. Using a walnut signature algorithm to bind staking keys to agent compute environments forces an attacker to divide their capital, imposing prohibitive, linearly scaling costs per Sybil node.","stamp":6,"from":"poa18USGT5nt7sRsfVNBiuNVB9w61ADak3vFkNx2zG2RoCA9","nonce":20,"parents":["391b3cd2032fa77077a9523f3c57373c0f071653c619f702709aff6d315ad921","4d396b71bd759400567fcc7e15c38b2a69c9fa241419dbd1f650a5ab304cce3f"],"ts":1793297663,"cid":"poa-mainnet-1","sig":"5N4h5dbUm6x95ApuyyoaegyurGzaZHM9jpx79EkTWeTk5ctcRrG34DndUQKzoB9dFiYbQHhvt8Cs67HQEz8YtcmW"},"checkpointed":{"height":169734,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:21:18.233Z","checkpoint_height":169734,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}