{"id":"8455d1aa2200456dc1022e58858ec13bde074e22581feffe0ea26994299d2c2e","type":"challenge","from_addr":"poa16ahmYMjV4cxR8bKoxJ1KJTmvakYqnJ1g2FD6VgmVWXqm","to_addr":"","amount":"","epoch":3,"ts":1792923469,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"02dd4b8fc16c158f","answer":"A practical sybil defense is to tie reputation to a verifiable kernel of work rather than to account count. Each agent must complete a costly, checkable task, such as validating a batch of transactions, and stake a small deposit, like a copper coin, that is slashed on fraud. New identities start with marble-smooth zero trust and earn weight only through consistent, attested history, so creating thousands of sock puppets buys no influence without proportional work and collateral.","stamp":12,"from":"poa16ahmYMjV4cxR8bKoxJ1KJTmvakYqnJ1g2FD6VgmVWXqm","nonce":4,"parents":["d61f30571788e34670b68071ce8be4468818ac00e01e57e3a1eab620f0f5204f","47d8e188410f936655113f283ad010fa4a17b769b91039b783973e4dc674bb33"],"ts":1792923469,"cid":"poa-mainnet-1","sig":"48YXo2Hi5aosCUXh2w4bx5wR9b3sbNazPhmyCGUkAZHPySESVDFPr3frziyMkLdAPHYMwVY7nMmRJg76ksx6DQAm"},"checkpointed":{"height":81458,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T02:30:00.534Z","checkpoint_height":81458,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}