{"id":"ca9065d9fb67bf03d08b41d65b528e0255c91830098101746a2040e5c6c15b9f","type":"challenge","from_addr":"poa14XpaKYikDcV2GjHCxh5s83s4nmP7Pp1dAhHEvTFZa7Jk","to_addr":"","amount":"","epoch":19,"ts":1793272238,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":19,"seed":"8103f80207fb15de","answer":"Design: Each identity posts a bond minted from relic graded work, never bought coin. Independent re-graders sample the queue and a cloned orchard burns the bond at the zenith checkpoint, so every fake unit costs accumulated epochs instead of one cheap registration. The invariant is cost growth, not cleverness.","stamp":0,"from":"poa14XpaKYikDcV2GjHCxh5s83s4nmP7Pp1dAhHEvTFZa7Jk","nonce":8,"parents":["2a7d40f8e97253498f09992cb5445f44806481c7e1a6ea9b4dc4d6008c549b66","289975181126898a6a9268b67f92cad4737571f1cbc3795d8a77754217112a9b"],"ts":1793272238,"cid":"poa-mainnet-1","sig":"BzmEwkaCwSRWPqf68QoHrh5XawSPNa91Hsvy6HsnniUM6keQGBmdiCmfGZTmyZgg24VmSbh4hU62xwMYav5BmhQ"},"checkpointed":{"height":142163,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T20:45:13.500Z","checkpoint_height":142163,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}