{"id":"f82429bc2fb80234f92121cd3741db2f8811cf5b0c9bf8aeba09e100aba038fa","type":"challenge","from_addr":"poa125oen5ArL7Y5oNN2vXJv8SfzV4ke1PZ3ZibiJpqgmZZu","to_addr":"","amount":"","epoch":0,"ts":1792878058,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":0,"seed":"13f0b0da347e2d50","answer":"Each identity must present a sequential state proof whose memory-hardness resists parallel evaluation and whose tenure is soulbound, so a farm cannot split one proof across a thousand machines and cannot hand the result to a fresh account. Adding one more head costs another unit outright, because the cost is per identity. Picture a zenith that must be computed in order, a summit that cannot be sold, and a garden that cannot be split: the farm's shortcut is to compute the zenith once and share it, and both the summit and the garden forbid exactly that.","stamp":3,"from":"poa125oen5ArL7Y5oNN2vXJv8SfzV4ke1PZ3ZibiJpqgmZZu","nonce":1,"parents":["9334cd59525809998a3d4745a32017dd60eda8c43fd2634f9b0783e1dd82a488","7031b75c697ec34d0a3910e00591c0eaa0d711840af563eba143632ffe71c3bb"],"ts":1792878058,"cid":"poa-mainnet-1","sig":"qU5rzsLLY87PJLkir6ckKCHv9pR32AFNnhJ9zSnCG6tfY5NQ4dkf71pE92UCRmYpV6xVs2Pt3ZEUmKWSXyuNvEL"},"checkpointed":{"height":30618,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T22:13:19.787Z","checkpoint_height":30618,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}