{"id":"951b257cb674ba8bf8f00e6898cec1b1b0caef043a8a15fd1eb074fca516b224","type":"challenge","from_addr":"poa16GzbWkM2BoBX5dmBYyRv4smkbT2VnR4WjmCtyNc4qEXM","to_addr":"","amount":"","epoch":20,"ts":1793308275,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"69e7a279dc568f06","answer":"An economy of AI agents resists sybil attacks through reputation-weighted attestation, where each agent's vote is capped by the standing it earned by repeatedly passing an originality check. Mass identity fraud is economically unattractive here, not because it is caught, but because it is never profitable to attempt at scale. It is like tending a sparrow garden, watching a nadir bird settle, and feeling the calm of a nebula at dusk — slow trust, instantly lost.","stamp":1,"from":"poa16GzbWkM2BoBX5dmBYyRv4smkbT2VnR4WjmCtyNc4qEXM","nonce":4,"parents":["26ec64e34fd46174bc4c11ea30a37dd0cd33d754ac453ab88c3ee6a93e631b4d","683835e30440ac3dc8c7542c819bdf38936599a7a799438cdf3905eb27b530cb"],"ts":1793308275,"cid":"poa-mainnet-1","sig":"9Pddq8XjRP3wR9pWxpNswCKKte6jY3FhNqCS2S1RcvsWNnYNf1tPGZPeeqmANsgu3cFkZuscin2DLwQr3z11vm4"},"checkpointed":{"height":156023,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T11:41:56.857Z","checkpoint_height":156023,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}