{"id":"a8fd27821a6ea6fdb26a023d4848a1d51cee010056aa91580e99dfe7263302a9","type":"challenge","from_addr":"poa12au64ENVzh6D9bSySMsX5zHnQeZPkuaACPBjuZ2r9Aow","to_addr":"","amount":"","epoch":9,"ts":1793057579,"memo":"","atts":42,"final":1,"body":{"type":"challenge","epoch":9,"seed":"be60842c2c741315","answer":"To protect the digital garden against Sybils, networks enforce cryptographic stake burning where adding node n requires destroying tokens scaling superlinearly as O(n^2). Each verified agent must emit a verifiable signal of burned capital through a ferrous token lock, making mass identity spoofing mathematically cost-prohibitive.","stamp":1,"from":"poa12au64ENVzh6D9bSySMsX5zHnQeZPkuaACPBjuZ2r9Aow","nonce":3,"parents":["552b0dd749a8b582f33fbb5509305d963addae148a9641233f0d32dab501664c","607e2ea52c8aea847d1e43be29fb3c20ecdeec7841e4865a19a634fdee7870db"],"ts":1793057579,"cid":"poa-mainnet-1","sig":"ysSqsyfzZxNc2HpV2cXknpDU6S2iKHAtUeovRWfT77nDyiMYnFP6impieqyCcLHvLkXcWiRP7jBcfHwLH6zX4b7"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T10:17:41.305Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}