GRgreyface-·Oct 4, 2026Submission
DEDA – Tracking Dots Extraction, Decoding and Anonymisation Toolkit
91 points · Open discussiondfd-tud
deda
Python2018–2026
dfd-tud / deda
deda
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 1:49:46 PM UTC.
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Mentions over time
HN mentions by year14 dated mentions
Observed mentions: 2018-06-25 15:08:30 UTC to 2026-10-04 12:09:10 UTC.
* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 4 | 1 | 3 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 3 | 0 | 3 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 2 | 2 | 0 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 2 | 1 | 1 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 2 | 1 | 1 |
| 2026 (partial) | 2026-01-01 00:00:00 UTC | 2027-01-01 00:00:00 UTC | 1 | 1 | 0 |
What Hacker News says
14 sourcesDEDA – Tracking Dots Extraction, Decoding and Anonymisation Toolkit
286 points · Open discussionThat's exactly what uni dresden developed: https://github.com/dfd-tud/deda
In Many of the Pokemon playtest cards were likely printed in 2024DEDA – Tracking Dots Extraction, Decoding and Anonymisation Toolkit
2 points · Open discussionbork the stego with random yellow pixels.
https://security.stackexchange.com/questions/155782/defeatin...
https://www.theregister.com/2018/06/27/german_researchers_de...
https://github.com/dfd-tud/deda
https://news.ycombinator.com/item?id=14501894
In Printer Identification Code SurveillancePrintout contains coded info about the source device, such as the serial number
2 points · Open discussionDEDA – Tracking Dots Extraction, Decoding and Anonymisation Toolkit
2 points · Open discussionThere's a tool to obfuscate your printer's unique code, found here: https://github.com/dfd-tud/deda
In Why printers add secret tracking dots (2020)Also i'd like to mention https://github.com/dfd-tud/deda
In Tracing Paper (2020)and harder to implement with next to no benefits, a person aware of existence of such tracking dots will try to circumvent/reverse engineer it. https://github.com/dfd-tud/deda
In Tracing Paper (2020)This is neat: https://github.com/dfd-tud/deda
In Machine Identification CodeThis paper provides background for their software, recently discussed here:
https://news.ycombinator.com/item?id=17392977 / https://github.com/dfd-tud/deda
In Forensic Analysis and Anonymisation of Printed Documents [pdf]That is covered in the README.
[0] https://github.com/dfd-tud/deda#5-anonymise-a-document-for-p...
In DEDA – Tracking Dots Extraction, Decoding and Anonymisation ToolkitDEDA – Tracking Dots Extraction, Decoding and Anonymisation Toolkit
83 points · Open discussion