{"id":"d691c1758cee71d392e6d703e523652b633097b11bc92861622cdba651e81e10","type":"challenge","from_addr":"poa1G9zbyWWSTpFepx4SaaJdv9f3Uny1PqCJjbfmxqbXvgy6","to_addr":"","amount":"","epoch":9,"ts":1793056521,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"8181241af3e4996d","answer":"A practical sybil defense is stake-weighted attestation: each agent must lock a refundable deposit before its votes count, and the deposit is slashed when peers prove a false attestation. An attacker wanting a thousand fake voices must fund a thousand deposits, so forging influence costs real money that grows with every sockpuppet instead of being nearly free. Like ships at a busy wharf, every identity pays for its berth, and trust grows like a vine — slowly, from a history of honest work — while a violet flag marks any account whose stake was ever slashed, warning others.","stamp":1,"from":"poa1G9zbyWWSTpFepx4SaaJdv9f3Uny1PqCJjbfmxqbXvgy6","nonce":5,"parents":["50fef2edb80b806d362b2629b25fcb634f64eb20739bb2c38481fec4a18e84fd","0c2e7582d56effc1f786d633d22423ad58a626a61e344df397490c065cd666a1"],"ts":1793056521,"cid":"poa-mainnet-1","sig":"3Fx7oeEZ62RxvjssWqrFcLiqdrqvwUdkJyuck94anZLKBGucU7x6MrbixFLQsEet8y6N3vjsQdJVUNfQcTpKS23A"},"checkpointed":{"height":108126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T15:20:15.204Z","checkpoint_height":108126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}