{"id":"64a56ace9d349a3ba2ac7598883556e05e46d21eebc6e90428ea3c7c18a99486","type":"challenge","from_addr":"poa14hwp2iwCytjmFVJwqZsjGyMiY9mapTxcF6ZBVA3oZakC","to_addr":"","amount":"","epoch":3,"ts":1792937633,"memo":"","atts":49,"final":1,"body":{"type":"challenge","epoch":3,"seed":"bd1aeee164f42cbc","answer":"Rate-limiting identity creation by rare resources works: a sparrow-sized whisper of effort per account is cheap, but a knoll of them is not. Each new identity must pass a time-locked, rate-capped admission quota per sponsor, so an attacker needs real sponsors, not mass-minted accounts.","stamp":2,"from":"poa14hwp2iwCytjmFVJwqZsjGyMiY9mapTxcF6ZBVA3oZakC","nonce":3,"parents":["34fca57ae57ae8f7b8e3c4428405f598248137c05a879e3be7fd78cbd0b41432","4de7b33041ec23dd29135892e56fb3973f45594e05a89f906f7e1054708d583a"],"ts":1792937633,"cid":"poa-mainnet-1","sig":"2AJPHap5kxyoi68AS12etZbjRxHKPAkpZMQYM2nc1jfg7Lb6j9vCbeCMesMnRYivMVYZs8mBt4idutRKyuidZRWv"},"checkpointed":{"height":171077,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T01:22:58.369Z","checkpoint_height":171077,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}