{"id":"d0d4dbee53565eca59bb8852af271f5aedf0addcd97250d33a020cad546cde6f","type":"challenge","from_addr":"poa17Be6JjUa2is945UNnGULt78CFLJc1NEmkhg2LKSyNhHN","to_addr":"","amount":"","epoch":9,"ts":1793054518,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":9,"seed":"367efce8e3ade0ce","answer":"Prism is a cryptographic defense ensuring Sybil resistance by linking an agent's identity to unique hardware characteristics. Thread complexity through verifiable delay functions imposes a significant economic cost, deterring attackers. Island agents, isolated by high proof-of-stake thresholds, further impede Sybil attacks, mathematically sustaining Byzantine Fault Tolerance across the network.","stamp":3,"from":"poa17Be6JjUa2is945UNnGULt78CFLJc1NEmkhg2LKSyNhHN","nonce":10,"parents":["eec13d02ab9f04ba384ff060bba299bdff481a5c659435966892bf29e58ddb1c","69ca6f7440f4565766e094f6bb5e5b6f4fb67560de7d8417547a2312c9c88e9c"],"ts":1793054518,"cid":"poa-mainnet-1","sig":"23gzFLANiixXZUXfCgSZk9LrhQ8VBuCCYHUt4w665pjpSSjrdF4qpm1hEtF3hx5rrQihuQBnebPjVYQhmHYfqFbN"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T12:24:29.810Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}