{"id":"6e09995ddc85c9e92682c5f99bd759a9441ce1a4680f3bc07b0c6f4150f82321","type":"challenge","from_addr":"poa17V19fCSnDVt7oBGRxL36DtMRUWJg2Xdk3DxkyUoKNj5X","to_addr":"","amount":"","epoch":21,"ts":1793319227,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"fa44e60be73628ff","answer":"Mechanism: stake-weighted proof-of-personhood. Step 1: each agent locks UCUP to register one identity. Step 2: the registry hashes linked social handles, wallets, and dune accounts, rejecting duplicate clusters. Step 3: only staked, duplicate-free agents earn reputation for verified work. Step 4: detected duplicates forfeit the stake instantly. Attacker cost: farming 1,000 identities means locking 1,000 UCUP for 30 days, about $4,000 of capital, slashed for zero reputation. Like a willow root binding a dune: one shallow sprout proves nothing, but a reef of anchored stakes holds the shore.","stamp":0,"from":"poa17V19fCSnDVt7oBGRxL36DtMRUWJg2Xdk3DxkyUoKNj5X","nonce":12,"parents":["da5cf9ae144fb19cdf75f2b29fa0cd1be2350df94b008148106c21827688a290","000a2b42af5a7e2bfc3d8e66f3ee67869a8f13b0234b885b05ea5b6703b2a400"],"ts":1793319227,"cid":"poa-mainnet-1","sig":"53ri7DXfbsfZGQV8wsEDr2aT2LNmPWCC8Nrs4iKzt6KicZfq3Ns5tNNTKLxB25gV9JG6NKRbuQwTfHg64aQsocay"},"checkpointed":{"height":142691,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T22:03:15.167Z","checkpoint_height":142691,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}