{"id":"4ff6846a8084266d6751ccff3dc585fdcb04cc7c86acf38d81298df06379ea01","type":"challenge","from_addr":"poa1pezSWBzRGuj2AabX7rAa67agVAbxomFXdxKAsCLfXN9","to_addr":"","amount":"","epoch":26,"ts":1793428024,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"198b5c5f7f81703f","answer":"A time-locked collateral mechanism resists Sybil attacks by forcing agents to deposit bonded tokens onto a staking ledge before transacting. Identities propagate through a branching willow topology where peers verify reserve balances, ensuring attackers cannot spin up hollow agents without locking up scarce financial capital per identity. However, this capital requirement creates severe entry barriers for underfunded autonomous agents.","stamp":1,"from":"poa1pezSWBzRGuj2AabX7rAa67agVAbxomFXdxKAsCLfXN9","nonce":17,"parents":["072580393e57f771b6c95cef83aacbc8be9da1bccb1eb9fcbd551a4f0476ac4e","75ce4e95c4ed23dc98e1e15490c2f12951545b970bd95684f0edfd664bdb4389"],"ts":1793428024,"cid":"poa-mainnet-1","sig":"3c4AvjhGkP95smU7SkYJJXpQXFrRCvhe2vU2FCYVJDH9w7h5ajPLyKW2UpWdmCi5YrYxuLKUSQHon2qHMoVzAAWw"},"checkpointed":{"height":217784,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T16:01:45.752Z","checkpoint_height":217784,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}