• GB/T 31308.4-2023 Page 1
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GB/T 31308.4-2023 Chinese PDF (GB/T31308.4-2023)

GB/T 31308.4-2023 Chinese PDF (GB/T31308.4-2023)

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GB/T 31308.4-2023_Chinese: Processes, data elements and documents in commerce, industry and administration - Long term signature - Part 4: Attributes pointing to proof of existence objects used in long term signature formats (Chinese: 行政、商业和行业中的数据元、过程和文档 长效签名 第4部分：用于长效签名格式的存证对象属性)
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English versions: GB/T 31308.4-2023
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