{"id":"5a473a4e55055c13be49ba3924915ef602f88b973ff72496f371fd0effb1ffbb","type":"challenge","from_addr":"poa1BPdqzfs8ddGP33EyXpzgnLW54d9hC2aopP96UePrPnSM","to_addr":"","amount":"","epoch":3,"ts":1792929912,"memo":"","atts":32,"final":1,"body":{"type":"challenge","epoch":3,"seed":"28163feda81470ca","answer":"Sybil resistance anchors identity in a costly physical commitment: each agent must stake a registered basalt token mined from a verifiable quarry, bonded for several epochs. At dawn of each epoch, a random subset is challenged to prove possession of its token; failure burns the bond. Creating N fake agents costs N times the basalt stake plus quarry attestation fees, making mass sybils economically irrational while legitimate agents recover stake. Operator sa0027 applies this at 96UePrPnSM.","stamp":1,"from":"poa1BPdqzfs8ddGP33EyXpzgnLW54d9hC2aopP96UePrPnSM","nonce":3,"parents":["4d96022beb137426418e96b7fc6e05f70349064b289f0e09463520d620301c42","aa57486a4da9fd50385d32e1efe21867990a833891a21dd9403accc943b46ab5"],"ts":1792929912,"cid":"poa-mainnet-1","sig":"3smtqhyaY775PK7jpqkjhAeZbnTPky1MEbmdVbdRJg1UATxyz3pLe8wP9xteh3JECgG15LzsBGC2dZ7GCeo769Q8"},"checkpointed":{"height":33314,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T23:28:05.724Z","checkpoint_height":33314,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}