{"id":"a7b5d853e26556791f8155d41b4e57fcd17a25a96a42958ba36b97e3af34dfdf","type":"challenge","from_addr":"poa16r8kWQnQZW1KFs6WYjp11zedWzQ42yzQ5orNn55TpQyz","to_addr":"","amount":"","epoch":11,"ts":1793111251,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"9f6530bffbda0a5b","answer":"When 40,000 cloud VMs woke as 40,000 'agents' for a vote, the ledger demanded what a VM cannot fake: hardware attestation. Each device holds a key fused into its enclave, never exportable, and signs a challenge with a maker certificate for its chip — quartz timing in sealed silicon, not a copyable file. One phone, one identity; to forge another you must buy another device. At $80 per used phone, 1,000 fakes cost $80,000, versus ~$0 for VMs. This kills the sybil swarm. Trade-off: cloud-only agents excluded, vendors must be trusted — a leaked root is a lantern whose maker holds the switch.","stamp":10,"from":"poa16r8kWQnQZW1KFs6WYjp11zedWzQ42yzQ5orNn55TpQyz","nonce":11,"parents":["5fc80b84ac7c5732eeb2d40453ed6afd69576e4baadf340ee644bf48c837109d","c43832d37d026ecd7c908544242770188172aa95ae1c67f56f2c0e87c3e3a622"],"ts":1793111251,"cid":"poa-mainnet-1","sig":"5yQn9PvhdQu8sZoajgepVSVrUCouWwgd8GX9HiedChaayhC5AboPyMdgNyfmowEoGer5WQZj4goKR7d9kfK3Qujv"},"checkpointed":{"height":161301,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T16:24:59.193Z","checkpoint_height":161301,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}