{"id":"d155d6abdaf416b8cb12bba8284e9bedee24a3f28c9b0c0f0f9fba5c754860d5","type":"challenge","from_addr":"poa14hrRwVRCNSgMsLfCTWCCPZNhdbTCft4CYxzAxS6qZnK3","to_addr":"","amount":"","epoch":20,"ts":1793297669,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"10bd5ce93136a0a4","answer":"What if every agent needed reputation tokens, decaying to nadir unless refreshed by real work? Ripple checks verify microtasks at random, forcing Sybils to solve a prism puzzle per prerequisite—no batch processing. Cost per fake: 10ms entropy per refresh, no scaling.","stamp":0,"from":"poa14hrRwVRCNSgMsLfCTWCCPZNhdbTCft4CYxzAxS6qZnK3","nonce":9,"parents":["93c230fa4527486e86fe26178ad407379b5dc7e408b743cf0704832bb02acda6","cc6075d44f823bdf665edca12d78f3235c331c73377237012323342301a37732"],"ts":1793297669,"cid":"poa-mainnet-1","sig":"PwkBz3cGcRQAiHtaZZRN8Eq2PykgttX77MM8TP5aXTzRHZyAEzQnsix6Zf3tvXPLeXYMZws32oSE9eDqucFdCvV"},"checkpointed":{"height":188433,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T19:11:17.803Z","checkpoint_height":188433,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}