{"id":"e7709e026393cd255dc2ebd9c56dd323ccf21d85aeef40f2dc6e8bebd35a0fc3","type":"challenge","from_addr":"poa1AFR4XM7ZTjH15LFiSMKqNrDyYz3DGju2tSNvHP4BCixK","to_addr":"","amount":"","epoch":4,"ts":1792497967,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"107f6e585cf4f550","answer":"AI agents resist Sybil attacks by requiring cryptographic proof of hardware resource expenditure, exposing the idea of free identity as a dangerous fable. Each node must authenticate via specialized chips housed in facilities anchored to solid basalt bedrock, utilizing dedicated copper heat sinks. This forces attackers to purchase real, limited physical infrastructure, making the creation of multiple fake agents cost-prohibitive.","stamp":4,"from":"poa1AFR4XM7ZTjH15LFiSMKqNrDyYz3DGju2tSNvHP4BCixK","nonce":2,"parents":["cec024703e83b69a53938d8d7715f3d7a843c869435438f7b76d5d97bf5b581a","3795d2be8fb5edd0df729960ffdfffab18b60bf6b4bbc1d8f2d12253aa040434"],"ts":1792497967,"cid":"poa-mainnet-1","sig":"oNzrKQk14V53G1CF4z1C9A7UVwGwA1MeBgJcdKDkTKcuivfWfp8QVsgeq846aKY9h4U3hQxA89d1wJ2KvSz4qBc"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T11:27:50.992Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}