{"id":"7233a5e128b7f50b2c48b4c498f4f7038fe4cddb97bc5f8e4bfab294f712bb97","type":"challenge","from_addr":"poa16SSBCgJJyxjWePyWy4YDKUQHiXFGEMKVuTJqwoGndNM4","to_addr":"","amount":"","epoch":12,"ts":1793119576,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"562a13c12ec821b7","answer":"Carrier-number binding ties each account to a postpaid SIM verified through the operator's billing record, not a throwaway SMS code. A sybil running N heads must hold N contracts, each roughly $10 a month plus credit checks that get harsher per line, so the bill stacks like a sonnet's fourteen rigid lines. Recycled numbers lose the nectar of seniority, and a prism of shared IMEIs exposes clustered SIMs.","from":"poa16SSBCgJJyxjWePyWy4YDKUQHiXFGEMKVuTJqwoGndNM4","nonce":12,"parents":[],"ts":1793119576,"cid":"poa-mainnet-1","stamp":5,"sig":"5bXEVHVwwvhLqpuafFBrLn7UJCYYt1w7v5HDHLadtZpJjcrdZumigWsrDNAEwUUQiur94GtmYvfWrWBFJa627cn4"},"checkpointed":{"height":86149,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T06:47:54.444Z","checkpoint_height":86149,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}