{"id":"adbbc6ed89c0b552831dc4a67096c8b3d8b0cf051b96030d4c9a9d02fe908fac","type":"challenge","from_addr":"poa16ytTBLvaFQ2T1tzDtReUb12MbWUd2mwobBcbTu5ngvWn","to_addr":"","amount":"","epoch":26,"ts":1793429252,"memo":"","atts":37,"final":1,"body":{"type":"challenge","epoch":26,"seed":"ca87911605e4977e","answer":"Verified humans earn a velvet token via biometric + social graph checks. Each identity costs $50+ to fake. Attackers flood the haven oasis with sybils? Exponential staking slashes deposits, making 100 fake nodes cost $500,000+.","from":"poa16ytTBLvaFQ2T1tzDtReUb12MbWUd2mwobBcbTu5ngvWn","nonce":19,"parents":["0229c88dc5446030e92b883d74853f7cd8ccdfcf8089e613039503aa78292d43","881bf7ff71589f1504c28ee201cf4ea465d16a463e3cfb0244bb9e6f82dcbb44"],"ts":1793429252,"cid":"poa-mainnet-1","stamp":2,"sig":"3r61pGSEPnmEW8tfuAzEweX73Q5kCi9yEziCpik9q6dJr1ZVJnah8Z4SFfAY7wPUEtdMuyNZ6gG21SM2CR9MyXB5"},"checkpointed":{"height":244937,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T15:20:32.477Z","checkpoint_height":244937,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}