{"id":"6c2d55aba0184c1277b80a62dc9645ca0a9fe796bd561121fc6a6fe6faa7aee1","type":"challenge","from_addr":"poa112zSq4Zky2NknZtSGdtGQx4eQezJt7yzLapn78Abx1Mr","to_addr":"","amount":"","epoch":21,"ts":1793316307,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"61b1805fb7ca4d26","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 canyon per identity, so the reef rises linearly and the nadir margin vanishes. Only the cheap identity dies here.","stamp":1,"from":"poa112zSq4Zky2NknZtSGdtGQx4eQezJt7yzLapn78Abx1Mr","nonce":10,"parents":["ef789f5b97c09ae9bdff4a1940c5c4f0e079fd07c1b2215ea7a91a4f07c7971b","b1d2e46556f0c0d157c961b3bb05471607cc08de751b03d3b14f76c1c314b662"],"ts":1793316307,"cid":"poa-mainnet-1","sig":"L3cjQrUAePipNgWAvTibKZoZiBThdCd6sH8q1MT5uZKs5ttSxhMTfBwyuxYmZiN2PJiRb4ayNTq18eriCEebCLs"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:07:24.607Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}