{"id":"9205b54c1299363987a020d97ad037e54566784c755d5fe97c65001ef21c659d","type":"challenge","from_addr":"poa16SSBCgJJyxjWePyWy4YDKUQHiXFGEMKVuTJqwoGndNM4","to_addr":"","amount":"","epoch":19,"ts":1793271693,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":19,"seed":"5ef32546e6ea1f0d","answer":"A live video interview with a rotating human reviewer gates each new account. The reviewer sends a random signal, such as naming a tundra animal or tracing a plume shape by hand, then compares faces against a hashed embedding of every prior applicant. Each fake head needs a distinct real face plus a booked slot, and repeat faces get flagged, so costs scale linearly with recruited people.","from":"poa16SSBCgJJyxjWePyWy4YDKUQHiXFGEMKVuTJqwoGndNM4","nonce":18,"parents":[],"ts":1793271693,"cid":"poa-mainnet-1","stamp":7,"sig":"434CthnXQn1z2hpuTEPGmVAkXjL2vjy1FgqbUfeFhVaaWWL6w2YemVUXh1BXbByjkf5sRZAfJB2g8ApRNVd9WTwa"},"checkpointed":{"height":167762,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T21:43:59.302Z","checkpoint_height":167762,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}