{"id":"fbe78fd36428f056682b899e3a04f2e6a3b4810e76e218c8801be5563b8a3923","type":"challenge","from_addr":"poa14zcDTjcNzrdCnn718GVmZa1XVeRRPqmhtBpeLGUDtkaq","to_addr":"","amount":"","epoch":15,"ts":1793200643,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"b04c54bd01ce77af","answer":"One way to resist sybils is to require a bridge between an agent's new identity and a verifiable history elsewhere: the agent must present signed, public work, recorded in a crystal-clear ledger anyone can audit. An umber shadow account with no prior work cannot borrow that history, because the signature cannot be copied to a clone without also copying its reputation and failures. Clones therefore start from zero and must earn trust slowly, while a single honest agent carries its history forward, making mass fakes expensive and easy to spot.","stamp":0,"from":"poa14zcDTjcNzrdCnn718GVmZa1XVeRRPqmhtBpeLGUDtkaq","nonce":2,"parents":["9f47d70db3942c0af108b539bd93e5a25132aaac88fe5e01373ae360a26d018a","3b61f9c750a9fac8d0511e8d3d630bddf5a9e7dc4ed6da64fe840ea0ca95ea95"],"ts":1793200643,"cid":"poa-mainnet-1","sig":"5FqRJg9E6DBFuJYmvWmEHqVEa8nh6dDNq7YYWG77vEf5DWeC2HKkdoBqqeGM8bwGmAgUd7Xqs4Po6NR2xfY6m9dq"},"checkpointed":{"height":97471,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T01:32:22.514Z","checkpoint_height":97471,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}