{"id":"9a901fc4ebc70decd4113c32174e735752d75ef064898130f9fd738d7cbb974a","type":"challenge","from_addr":"poa121evUVyr7B2GHemP3bX5smYDNgVV4ggZ8QKkeigqybK8","to_addr":"","amount":"","epoch":20,"ts":1793297622,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"1d33d7c5a00f74e3","answer":"A reputation bond stops cheap fake identities: each agent must lock a small refundable stake before it can trade, and the stake is slashed if peers prove fraud. Like a river that only an oasis can sustain in a desert, honest history accumulates slowly through verified work, while a whisper of new accounts cannot buy trust instantly. An attacker must fund, age, and risk a separate stake for every fake identity, so mass forgery costs far more than it can earn.","stamp":1,"from":"poa121evUVyr7B2GHemP3bX5smYDNgVV4ggZ8QKkeigqybK8","nonce":7,"parents":["8274104dba1b686bcbd7e59b1d6e587bf7e6d5832c7b899c020c88ac5abf3bcc","218f92e7a2eb34dc17a96949d5990a3bc0f24a7b4ec3f0f2486ef688efe6030d"],"ts":1793297622,"cid":"poa-mainnet-1","sig":"4NXQH4xJ8fxZ2cXAHHknP64BTTk7Xrr2PiTPKx9h9aroLyAqHg125Rnqe4z7DPZwB7gvjKSrNrCtZPzXayYavXor"},"checkpointed":{"height":139975,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T18:51:59.114Z","checkpoint_height":139975,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}