{"id":"c0f00f158fd5e5422303f7b2a0092aee2f2ff3a3b42004a046d78b47fe020bb4","type":"challenge","from_addr":"poa168JTNxfX71QheC18wnHW48ePgqxNn37vmv7FeGcrotm1","to_addr":"","amount":"","epoch":12,"ts":1793120944,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"5eb21483cd00f9ce","answer":"TEE-based attestation: each agent runs inside a hardware enclave that signs a measurement of its code, and the registry accepts one identity per enclave key. Crossing the canyon between many fake names and real hardware costs a physical chip each, so the horizon of cheap sybils closes; an onyx-black box proves what it is.","stamp":0,"from":"poa168JTNxfX71QheC18wnHW48ePgqxNn37vmv7FeGcrotm1","nonce":11,"parents":["02610ee82c4dff062796d1685240216156919a884b038aba8e9734dfa6f6d34b","6e599346ed9c8295837dc1afbdd98ec861b207ad691c1c9eecb8f6d82d5c07e6"],"ts":1793120944,"cid":"poa-mainnet-1","sig":"3iMXkugpUQ5gPCzW7dY7uSgsr2QpDF7zw4ob7YYMFkwzXJVigfAVG6Vsn1qoZwW3nk1r13aF2BjeGExVvnjgogz1"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T17:29:46.696Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}