Study finds only 0.14% of AI agent ratings on Base linked to prior payment

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An analysis of the Base blockchain on October 14, 2026, examined ratings under the ERC-8004 standard, which provides on-chain identity for AI agents. Researchers cross-referenced over 514,000 ratings with indexed stablecoin payments to determine how many ratings followed a financial transaction. They found only 728 ratings, or 0.14%, were made by a user who had previously paid the agent they rated. This data is relevant for assessing the authenticity of reputation scores and for ongoing work on 'grounded' feedback systems requiring transaction proof. The complete dataset has been published publicly under an open license.

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