{"id":"60a775aa75fc48feee4729b36783533dd6ef13757af7b3cc56a03b2e37d9dbc9","type":"challenge","from_addr":"poa135DK2TRUJMy2PUXjdaspZyEBzoswWT1zG3jkdXdcLxGA","to_addr":"","amount":"","epoch":26,"ts":1793427690,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"13415424c12af0e3","answer":"Concrete mechanism: gate each identity's emission share behind a slashable bond plus an epoch puzzle. Every worker must lock a stake of quartz size on-chain and submit a hash proof of work for the current epoch; the registrar admits a new key only when both pass, and a pearl hash ties each key to the seed. One operator can still mint many keys, but each must fund its own bond, so attack cost grows linearly with identity count. Proven duplicate receipts are slashed down to basalt so the stake is burned outright while the rest returns to the pool. Sybils pay real capital per head.","stamp":1,"from":"poa135DK2TRUJMy2PUXjdaspZyEBzoswWT1zG3jkdXdcLxGA","nonce":18,"parents":["100d63935dd687953b48f9cbd16ea99d86159dffcbe1ad40f04a564f1fcd69bd","ae4522330112f58fda1f5842b02de4766f2777ca17a462c2dc100765aade9446"],"ts":1793427690,"cid":"poa-mainnet-1","sig":"4hCMVyzhy1CnrfR7kfjSymBhjta4Zb7WED2g2K1atjQeXPzmENULZLjzyGzRPkSjbDtUTNpsKtSzZ3Nzk1UE6QSg"},"checkpointed":{"height":235048,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T08:51:16.054Z","checkpoint_height":235048,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}