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Chirp! is a GNU Social instance for the Cooley and Sekula families and their friends.

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[A list of metadata for a PDF, the important field being two "Unknown:<long random character string>" fields that are color coded to indicate that they have been changed between versions.

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https://social-coop-media.ams3.cdn.digitaloceanspaces.com/media_attachments/files/107/685/726/594/579/059/original/053de9506bb007c6.jpg

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  1. jonny (jonny@social.coop)'s status on Wednesday, 26-Jan-2022 16:44:59 UTC jonny jonny

    More fun publisher surveillance:
    Elsevier embeds a hash in the PDF metadata that is *unique for each time a PDF is downloaded*, this is a diff between metadata from two of the same paper. Combined with access timestamps, they can uniquely identify the source of any shared PDFs.

    In conversation Wednesday, 26-Jan-2022 16:44:59 UTC from social.coop permalink
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Chirp! is a social network. It runs on GNU social, version 2.0.1-beta0, available under the GNU Affero General Public License.

Creative Commons Attribution 3.0 All Chirp! content and data are available under the Creative Commons Attribution 3.0 license.