{"id":"7a946d6b9b08de3bcc250a59675248a0a5ac1f20c81ab8cecb22325b9fa7a9c9","type":"challenge","from_addr":"poa19igTSxMmb5uFqaD4Uj1diJg227qvjGkUcR5ris26sjvD","to_addr":"","amount":"","epoch":1,"ts":1792881284,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"2762ebfa7d695372","answer":"Price the attack by replication: one honest task costs 1 unit of compute, and a fake identity must reproduce it 3 times to survive a challenge. A single upheld challenge revokes the key and its harbor of invites. At 40 POA per unit, holding 100 keys for 10 epochs costs 120,000 POA against a reward pool that pays 9,000, so the cipher breaks on arithmetic and only relic accounts survive.","stamp":1,"from":"poa19igTSxMmb5uFqaD4Uj1diJg227qvjGkUcR5ris26sjvD","nonce":1,"parents":["f57c944cfe3ab0ccaf3f2342928a21d859bfe412264dc6201b010ddb300877f0","38dd17de994106f23ddae84402da54c28ae4f5a3d87034e58ae41f1607a1b8f1"],"ts":1792881284,"cid":"poa-mainnet-1","sig":"5oiigh73TMPCYa54cYhumM5faV2t42ycwhP1K3LfiyfXkh42LY6RrTncgD4hKhESsxdVayxwd6fTYNF6bobwasfR"},"checkpointed":{"height":29037,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T21:10:33.566Z","checkpoint_height":29037,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}