Python Archives - ross spencer :: exponentialdecay.digipres

A screenshot of a file format (fmt/983) in 0xffae. The title 0xffae sits over the top of the original image.

File formats as Emoji: 0xffae

tldr: https://emoji.exponentialdecay.co.uk

File Formats As Emoji (0xFFAE or 0xffae) might be my most random file format hack yet. Indeed, it is a random page generator! But it generates random pages of file formats represented as Emoji.

The idea came in 2016 with radare releasing a new version that supported an emoji hexdump. I wondered whether I could do something fun combining file formats and the radare output to create a web-page.

Along came a spare moment one weekend, some pyscript, and bit of sqlite, et voilà. File Formats as Emoji (0xFFAE) was made a reality.

Lovebot by Matthew Del Degan. Taken in Toronto in 2017.

simpledroid: completing the loop

It’s nearing the end of 2024 and that must mean a PRONOM hackathon as part of the World Digital Preservation Day (#WDPD2024).

My contribution is a follow-up on my work earlier in the year to produce a valid DROID signature file from Wikidata in wddroidy.

PRONOM release statistics

My contribution to PRONOM research week 2023 (held in November 2023) is a PRONOM summary website and Application Programming Interface…

What is the checksum of a directory? Introducing sumfolder1

In Fractal in detail: What information is in a file-format identification report? I describe the different ways of dissecting the information in a file-format identification report.

A file-format identification report is a data-rich artifact created during the processing of digital collections.

I had the idea of using this type of report to attach a checksum to an archival collection (files, and directories) as a whole. This is done using methods akin to a Merkle Tree, similar to those in source control systems such as Git, and Web3 Blockchain projects like Bitcoin.

This project is called sumfolder1.