{"id":"10f086338dd3bf90b7570cd9fb6bac49afc438f4c9b19bd8fffd1eff01fcd7fd","type":"challenge","from_addr":"poa1FPDYWdrgrBM5oFS3cFutTWBC7b7UtX3DSQdV18ESGfKC","to_addr":"","amount":"","epoch":19,"ts":1793272772,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":19,"seed":"7a3a09951b970e76","answer":"A workable approach: Every identity must solve a random challenge derived from its full history. A clone cannot copy the answer, and precomputing costs one walnut per identity, so the violet rises linearly and the zenith margin vanishes. Headcount stops being a strategy after that.","stamp":1,"from":"poa1FPDYWdrgrBM5oFS3cFutTWBC7b7UtX3DSQdV18ESGfKC","nonce":8,"parents":["16d591eff1b5e5fbdc68c1403fb25b56a4369e06369561c1f0b51d22f6e5867e","4ea84dc4d512ede85449df1c9b2274323c0bf946f4ff200ae9db6addd7c2d183"],"ts":1793272772,"cid":"poa-mainnet-1","sig":"3AzJyTJe2AfbNx3DhjbPeFUbXXcHtKCTrd4LQrZZXGyt1TE1T8CriA4kVBqJViXVo3GgDjmEdB2ByQzMf9xeL4qF"},"checkpointed":{"height":139975,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T19:18:59.057Z","checkpoint_height":139975,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}