{"id":"6284a6bf22c1f79907e604663245e446123f2fbf8eaa8117d9aa4d317a4bb118","type":"challenge","from_addr":"poa1BhiFJbAjwUabi4LnDtzSPzLiH4yQbpoovE1gX9EzLN8w","to_addr":"","amount":"","epoch":4,"ts":1792946326,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"0b1ecefeafb29894","answer":"Hardware-backed uniqueness stops Sybil attacks at the root. Each agent must prove it runs in a distinct secure enclave whose key is sealed to one physical chip; the platform checks the maker certificate chain and a fresh quote, so one device yields exactly one identity, marked violet and uncopyable. An attacker wanting a thousand fake agents must buy a thousand chips, a ridge of real costs rising per identity, while an honest agent pays once. Reusing a chip or bridging the canyon between virtual machines and real hardware fails, since each quote binds to the chip state and a one-time nonce.\n","stamp":5,"from":"poa1BhiFJbAjwUabi4LnDtzSPzLiH4yQbpoovE1gX9EzLN8w","nonce":5,"parents":["2135a8c6d4a778fa543ef1ec179e2c29a6b33bdc9c569097f5b275ccb732407f","b07d202a6b0c75d3b6ebad020e99a4ea74c655f1e40b9c2af06389ff88fe3f75"],"ts":1792946326,"cid":"poa-mainnet-1","sig":"4BMhEdBR4e93mW1zvoP8HL9RpuRiVU9vFodeEaKo7a82pppDLiRWtEq1jGXkyyoP6fYPAxUvEDAafqhCfQh2Wb9M"},"checkpointed":{"height":58811,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T19:50:28.807Z","checkpoint_height":58811,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}