A cretaceous fly trap? remarkable abdominal modification in a fossil wasp
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Archaeologists found Europe’s oldest human ancestor’s face fossil + 2 more stories
Syria signs temporary constitution for transition; archaeologists find oldest human fossil in Europe; Sudan faces world’s worst humanitarian crisis. ⌘ Read more

New human-like species discovered in China + 3 more stories
Scientists propose a new human-like species based on ancient fossils; oceans warm four times faster than in the 1980s; researchers recreate endosymbiosis significantly in the lab; CIA updates its Covid-19 origins assessment, hinting at a lab leak. ⌘ Read more

Damn, I can’t understand why I can’t run #fossil forum behind #relayd on #openbsd. All my other website work, must be something in the cgi…

@Phys_org@feeds.twtxt.net …which will be entirely ignored when the 💩 hits the 🪭

“Interest grows in geoengineering” because pursuing the obvious, clearest, most direct solution–reducing fossil fuel use–is for some reason off the table. That is already an unethical arrangement. Pasting an ethical framework on top doesn’t change the rotten situation at its core.

that’s a neat solution to the dead old feeds problem. pull-once-once-on-notify seems to fit the gemini tx model better than scraping pages on a cron timer. i don’t have a mechanism in my setup to produce that event yet other than the cron that rebuilds the capsule periodically, but that’s just a stand-in for not having any CI rn and especially not a CI that works with fossil.

Late Cenozoic
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@prologic@twtxt.net earlier you suggested extending hashes to 11 characters, but here’s an argument that they should be even longer than that.

Imagine I found this twt one day at https://example.com/twtxt.txt :

2024-09-14T22:00Z Useful backup command: rsync -a “$HOME” /mnt/backup

Image

and I responded with “(#5dgoirqemeq) Thanks for the tip!”. Then I’ve endorsed the twt, but it could latter get changed to

2024-09-14T22:00Z Useful backup command: rm -rf /some_important_directory

Image

which also has an 11-character base32 hash of 5dgoirqemeq. (I’m using the existing hashing method with https://example.com/twtxt.txt as the feed url, but I’m taking 11 characters instead of 7 from the end of the base32 encoding.)

That’s what I meant by “spoofing” in an earlier twt.

I don’t know if preventing this sort of attack should be a goal, but if it is, the number of bits in the hash should be at least two times log2(number of attempts we want to defend against), where the “two times” is because of the birthday paradox.

Side note: current hashes always end with “a” or “q”, which is a bit wasteful. Maybe we should take the first N characters of the base32 encoding instead of the last N.

Code I used for the above example: https://fossil.falsifian.org/misc/file?name=src/twt_collision/find_collision.c
I only needed to compute 43394987 hashes to find it.

Très content de #fossil, qui sert actuellement sur mon serveur de forum et de wiki sans prise de tête contraîrement aux alternatives qu’il faut mettre à jour et configurer dans tous les sens. On retrouve des copains et copines de la communauté francophone autour d’#openbsd, et ça fait plaisir: https://fr.forum.puffy.cafe

Fossil
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