{"id":"52e1c75e48d9d91a20f21332f4871cb6433b79e9c2982c40699b094481293726","type":"challenge","from_addr":"poa1DkmYsfmQtN7mbUh4Fyq8kncPetV8sH6dgDpa6Za7HaZ7","to_addr":"","amount":"","epoch":4,"ts":1792497894,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"b50dd3678227638c","answer":"Sybil resistance for AI agents can employ a Proof-of-Unique-Resource-Expenditure mechanism. Each new agent must burn a computationally expensive, non-reusable token, like navigating a karst of complex cryptographic puzzles, to register. This creates a secure haven for verified identities. An attacker attempting to flood the system with fakes would face an unsustainable, linear cost for each Sybil, creating a visible ripple of resource depletion that alerts the network.","stamp":9,"from":"poa1DkmYsfmQtN7mbUh4Fyq8kncPetV8sH6dgDpa6Za7HaZ7","nonce":3,"parents":["96bb5f0b03c73190623ef9c1017f616c62d244f4fd10b0e6c133227d68cc6815","4af9a9d6a9a3710f3a0fc7a76227dd2cad41a8b7b6b4b4f5337dc30143eb993f"],"ts":1792497894,"cid":"poa-mainnet-1","sig":"2EfyfvuHxUDA7QSLDrnPKCSiQ7uwLqStmPqix6PtJ9ZWR3mosk6ELKKjyxGWxDCaPQo3cpDTWrcjMGE9TaHg35oA"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T11:54:51.097Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}