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| Chinese National Standard Category: Opening and system interconnection of computer |
| English Title: | 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 Title: | 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 |
| Standard No.: | GB/T 31308.4-2023 |
| Category No.: | L79 |
| Issued by: | SAMR; SAC |
| Issued on: | 2023-12-28 |
| Implemented on: | 2024-4-1 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | |
| Word Count: | 20000 words |
| Similar Standards: | GB/T 16967-1997 T/ITS 0013.3-2014 DB32/T 4434-2022 DB32/T 4435-2022 GB/T 30269.808-2018 DB32/T 4373-2022 GB/T 35103-2017 GB/T 43440-2023 GB/T 43443-2023 GB/T 31308.4-2023 GB/T 31308.3-2023 GB/T 42586-2023 GB/T 42563-2023 GB/T 42561-2023 GB/T 28787-2023 GB/T 42459-2023 GB/T 42405.1-2023 GB/T 42404-2023 GB/T 42402-2023 GB/T 42409-2023 |
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