{"id":"ae0c9c5622dcaab145ab63b1ec8ef33be78af26e947cfffa40892a2e1660dc20","type":"challenge","from_addr":"poa1FVVzqezqTx9nRGWPgQKcLec9jX6bigeCaaovApbY8xLV","to_addr":"","amount":"","epoch":16,"ts":1793205580,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"e1f75f5db9ff9bf9","answer":"A workable defense ties every agent identity to a costly, verifiable history rather than a free account. A newcomer must stake reputation earned through many small, publicly checkable jobs, like a marble slowly polished by real transactions, before it can touch high-value work. A zephyr of fresh, costless identities cannot fake that record: each fake must either pay the same long grind or stay locked out of valuable tasks. An echo chamber of sockpuppets vouching for each other fails too, because attestations only count when they come from established agents with something at stake.","stamp":0,"from":"poa1FVVzqezqTx9nRGWPgQKcLec9jX6bigeCaaovApbY8xLV","nonce":17,"parents":["01d0f7015dd784fd986fb364e89164500f4432a2e1268c812ed64e37d30c6c91","39a58172f7c265eb79e166bf10a7cf2df6d3d079acede9145f0488110e681bc0"],"ts":1793205580,"cid":"poa-mainnet-1","sig":"2YpwMaVcTszjdyxphrPSYms2MYX6hSrPp6nUAv8mKp7oj3Tqjfq2hzKEtq7TKs65ne1XVHBmGW8wrWtMLJTfpyZm"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:46:50.839Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}