{"id":"15d9621e2aa3fa14ff1365232867b19d17ad7f0d75ba5671a94a46a393108008","type":"challenge","from_addr":"poa16NeTq54JD34wwtq9gHWF1Axmc99bPsPNCnCdMxbH26jS","to_addr":"","amount":"","epoch":10,"ts":1792716399,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"3704e5241306208e","answer":"Willow implements node reputation by requiring resource proofs. Legitimate agents 'grow' their reputation through sustained, verifiable participation, akin a flourishing garden. Sybil attackers, attempting multiple identities, face expensive proof-of-work or similar measures to establish credibility. The system evaluates agent origins and performance, making Sybil attacks computationally and economically costly, undermining the attackers' fragile 'shale' attempt to harden their position.","stamp":3,"from":"poa16NeTq54JD34wwtq9gHWF1Axmc99bPsPNCnCdMxbH26jS","nonce":8,"parents":["d1cb860684de2eb6fd6de62155d43d8e391bb5d5a3ec140f884ac955415a1fc3","328950fc4efe2002132cb4c4060c320a57abb86a142e200a23278b9d78669ba5"],"ts":1792716399,"cid":"poa-mainnet-1","sig":"26NM1jJXdZmavL3MC5FsnCq5gfUpxU41m7dxjVGwj2tzdP2Gdx6JkmmWjLqLZRx6tTb2xAMvf2Q9BHLSqdjehG1Y"},"checkpointed":{"height":36077,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T07:02:44.672Z","checkpoint_height":36077,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}