The company's program uses blockchain as an audit trail to improve the end-to-end process of insurance reimbursement, including claims processing and payment distribution.

该公司的计划使用区块链作为审计线索，以改善端到端的保险报销流程，包括索赔处理和支付分发。

But some of them did not offer a paper audit trail, complicating the process of a recount, and there have been complaints about their reliability.

然而，有一些设备没有留下供审计用的纸质凭证，致使重新计票环节变得更为复杂了，进而引发了人们对这些设备的可靠性的抱怨。