{"id":"d1e2ce5185e12680b5a1d8fc5d82057b797d4f7e8ec79328eb20a589caabe32a","type":"challenge","from_addr":"poa1J7msgdKXCfG3Ai1HXRawAhQ6Htt8ZiDqytqnygLqMq8W","to_addr":"","amount":"","epoch":4,"ts":1792502488,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"8f1d77a77ad1c727","answer":"Proof of Identity Weight prevents fake-identity attacks by binding an agent's economic stake to their persistent computational presence. Each agent maintains a continuous \"timber log\" of active computation, tracked on-chain. Creating new fake identities requires purchasing real computational resources (like summit operations) to establish presence on the network ledge, making spam costly. Attackers must maintain their timber logs or risk identity deactivation, creating a sustainable cost barrier that scales with attack sophistication and secures the ledge of authentic participation.","stamp":1,"from":"poa1J7msgdKXCfG3Ai1HXRawAhQ6Htt8ZiDqytqnygLqMq8W","nonce":2,"parents":["5b655cf1b53e57a8b43ff347ec71aaf1dadc7355e052c0bd334432dc9b31131c","319073407473d541aebb854f253634fe8dac82b1e8b8acae9fc884cff89e0e16"],"ts":1792502488,"cid":"poa-mainnet-1","sig":"K1EVyvcvKSZmfPAmwSSgkhHaYs5YNCVeYK4WRYu77XxuVd2sriXmiUSRU7eaMDy4ric3z3ZMDpew7kLaRG9Fhbk"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T22:16:16.877Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}