Looking at Solid Project: Can anyone give an overview of how this fits together with or complements ActivityPub?
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I am creating a #ActivityPub minimalistic implementation of a badge system similar to Credly, built using #dotnet and leveraging the #Fediverse
I have issued a first badge, the idea is to decentralize the verification systems, and allow organizations to self-certify. It is incredible that organizations like Microsoft or Non-Profits pay thousands of dollars to companies like Pearson to just provide "verified" badges. Similar to mastodons installed in social-dot-something, thinkg of badges<dot> mozilla<dot>com , certifications<dot>myschooldistrict<dot>com. Or even a podcast emitting a badge for its guests, with the verification in the domain.
ActivityPub already offers a secure way to sign artifacts and interact between actors. The fediverse already have people with profiles, a social graph as @mike says, ready to use. Think of how LetsEncrypt disrupted that market of few actors selling certificates for websites.
I have a functional poc,
@fediverse is not a mastodon, pledora or blog, it is an actor in a badge system, but you can follow it in Mastodon. Its badges will show in #mastodon but they are not notes or articles. If you want to learn more, follow me, I will be sharing the progress here. Or follow the github project here: https://github.com/tryvocalcat/activitypub-badges
Who wants a badge of early adopter?
GitHubGitHub - tryvocalcat/activitypub-badges: ActivityPub Badges ImplementaActivityPub Badges Implementa. Contribute to tryvocalcat/activitypub-badges development by creating an account on GitHub.
I've been playing with the experimental GitHub Copilot agent mode in vscode. I've asked it to start from an empty directory and create an #ActivityPub server in C++, directed only by prompts (no human coding). So far, it has created a C++ project and implemented WebFinger, resource persistence, resource retrieval and a decent set of unit tests. At this point, Mastodon is able to discover our actors. The AI is currently implementing Follow processing. I'm curious to learn how far I can push this.
Ich finde die Idee/das Angebot von #Bridgy grundsätzlich nicht schlecht, aber es ist einfach nur eine (unfertige) Symptom- aber nicht Ursachen-Bekämpfung.
Weshalb #Bluesky nicht auf #ActivityPub gesetzt hat (wo sie viel mehr Leute erreicht hätten), ist mir ein Rätsel.
The #fediverse is a fascinating place. I was using #nostr and came across a post by @cstross but I couldn't reply to it on Nostr and I couldn't find it on #mastodon
I suppose technically this isn't a fediverse issue as it isn't really related to the way #activitypub works, but rather more related to the way bridges work.
Now I'm guessing this occurred because the post in question was deleted by Charlie (though I saw nothing untoward about it) or because it was a very good imposter on Nostr.
If it's the latter , it doesn't explain why the post seemed to come from Mastodon, albeit not from Charlie's usually address.
If it's the former then that is more understandable but maybe worrying, because it means deletions on Mastodon are not respected elsewhere.
Now Charlie being charlie, there's no way he isn't already aware of this, but I think it might be worth spreading the word to others.
Saddling small sites with the same duties as huge platforms means many will shut down in a hammer blow to net plurality.
We'll be left with the Sophie’s choice of monopoly services; the incubators of online harms.
URGENT: The UK government must change the Online Safety Act to protect safe, non-commercial blogs, forums and fediverse.
Write to your MP to #SaveOurSites 
https://action.openrightsgroup.org/save-our-sites-write-your-mp
Open Rights GroupSave our sites - Write to your MPSmall UK websites, user-to-user services and even computer games that are completely safe and well managed, are faced with difficult paperwork, risks assessments, registration and fines thanks to the Online Safety Act. Even personal blogs with comments are forced to undergo these difficult tests and compliance tasks. Getting it wrong or ignoring them could cost an operator their house – as fines can be imposed for failing to do them. As a result, many small websites in the UK are deciding to close down.
Christine Lemmer-Webber, coautora del protocolo #ActivityPub <-> #fediverso :
> "Sin embargo, mantengo mis afirmaciones de que Bluesky no está descentralizado de forma significativa y que, desde luego, no está federado según ninguna definición técnica de federación que hayamos tenido anteriormente en un contexto de red social descentralizada. Afirmar que Bluesky está descentralizado o federado en su forma actual desplaza los objetivos de ambos términos, lo que considero inaceptable. "
(2/3)
A vueltas con las Redes...
" De acuerdo con Christine Lemmer-Webber, coautora del protocolo #ActivityPub:
> #Bluesky está construido por buenas personas que se preocupan, y está proporcionando algo que la gente quiere y necesita desesperadamente. Si buscas un sustituto de Twitter, hoy puedes encontrarlo en Bluesky.
(1/3)
I’m still using Toot!, a client that hasn’t been updated in years. It’s still working fine, even thought lots of improvements have been made to mastodon. The underlying protocol hasn’t changed though and that’s why things still keep working. That’s why you want well thought out, well defined protocols that care about stability and interoperability. I love it. And that’s also why I love XMPP more than just whatever is hyped at the moment.
Continued thread
Finally, our team had a wonderful time at #SXSW on Sunday and Monday, where Flipboard and @surf hosted the first #FediverseHouse. Our CEO @mike and the whole team are 100% #TeamFediverse, and were thrilled to meet and talk to so many other open social web advocates. Here’s a feature by @Markoff for @newyorktimes, where Mike, @Gargron and @reckless1280 discuss the rise of decentralized social media, and how it can help publishers and media companies survive and thrive.
https://www.nytimes.com/2025/03/06/technology/mike-mccue-surf-browser-decentralized-internet.html
The New York Times · Facing the Looming Threat of A.I., Publishers Turn to Decentralized Platforms
Continued thread
“The Fediverse Isn’t the Future. It’s the Present We’ve Been Denied.” Here’s yet another brilliant feature by @Daojoan. “The fediverse won’t succeed just because it’s better. It will succeed if and only if people choose it. If they reject the idea that being trapped in someone else’s ecosystem is just the cost of existing online. If they stop believing that “free” means surrendering ownership of your own connections, your own history, your own data. If they see that the internet wasn’t built to be a factory for engagement metrics and AI-generated content farms. It was built to connect us, not silo us to pad a wealth-extremist’s bank account,” she writes.
https://www.joanwestenberg.com/the-fediverse-isnt-the-future-its-the-present-weve-been-denied
westenberg. · The Fediverse Isn’t the Future. It’s the Present We’ve Been Denied.For years, the internet has been shrinking. Not in size, not in data, but in ownership. A vast, decentralized network of personal blogs, forums, and independent communities has been corralled into a handful of paved prison yards controlled by a few massive corporations. Every post, every “friend,” every creative work—
So many people in Denmark now talk about building a Danish/European social media platform (I proposed it 12 years ago and was laughed at) They want to start from scratch, but I keep saying we can build it on the ActivityPub protocol (alternatively Bueskys but I don't trust that in the long run). Anybody here who has experience with that? And know of other countries having done that? Contacts to people who could help build it? #activitypub #socialmedia @mastodon
#Smithereen now allows you to transfer your followers between servers.
Shoutout to #FediMeteo @admin and @stefano for the #RSS and #ActivityPub #federated #weather service. Finally, a reliable weather tool across platforms.
A week or so ago I reached out and they added my community. Every time the new weather report post or RSS feed comes through, I appreciate it so much.
Thanks again! #WX #Fediverse
Important! ActivityPub…
Important message! Message important
FR : Retrait d'ActivityPub de mon blog principal
EN: Removal of ActivityPub from my main blog
Will the last small site turn off the lights?
The UK Online Safety Act imposes the same duties and penalties on blogs, forums and fedi instances as huge platforms.
Many small, safely moderated sites will shut down or block UK users.
Crushing competition is the last thing we need for a safer Internet!
Act now before 17 March 
https://action.openrightsgroup.org/save-our-sites-write-your-mp
Open Rights GroupSave our sites - Write to your MPSmall UK websites, user-to-user services and even computer games that are completely safe and well managed, are faced with difficult paperwork, risks assessments, registration and fines thanks to the Online Safety Act. Even personal blogs with comments are forced to undergo these difficult tests and compliance tasks. Getting it wrong or ignoring them could cost an operator their house – as fines can be imposed for failing to do them. As a result, many small websites in the UK are deciding to close down.
Replied in thread
@lilbatscholar indeed @ErickaSimone there is no need to cross-post from Pixelfed because thanks to the magic of #ActivityPub, Pixelfed messages appear across the Fediverse, in the feed of your followers (or those following hashtags you use in posts).
Now, to increase the visibility of your Pixelfed account, I would recommend boosting your Pixelfed posts from your other Fediverse platforms (Mastodon in this case), so that your followers will more easily find them
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殆どのActivityPub実装では、NoteやArticleの内容（content）内で他のアクター（actor）に言及（メンション）する場合、tag属性に該当するMentionオブジェクトを含めています。では、PersonやGroupなどのアクターオブジェクトも、自己紹介（summary）内で他のアクターに言及する場合、tag属性に該当するMentionオブジェクトを含めるべきでしょうか？既にその様に動作している実装はあるでしょうか？（Mastodonは確認した結果、含めていない様です。）どの様にお考えですか？
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大部分의 #ActivityPub 具顯들이 Note나 Article의 內容 (content) 안에서 누군가 다른 액터를 멘션할 境遇 tag 屬性으로 該當하는 Mention 客體들을 包含시킵니다. 그러면 Person, Group 等 액터 客體들도 略歷 (summary) 안에서 누군가 다른 액터를 멘션할 境遇 tag 屬性으로 該當하는 Mention 客體들을 包含해야 할까요? 或是 이미 그렇게 動作하는 具顯이 있을까요? (Mastodon은 確認해 본 結果 包含시키지 않는 것 같습니다만.) 어떻게 보시나요?
Most #ActivityPub implementations include Mention objects in the tag attribute when someone mentions another actor within the content of a Note or Article. Should actor objects like Person or Group also include Mention objects in their tag attribute when mentioning other actors within their bio (summary)? Are there any implementations that already work this way? (I've checked Mastodon and it seems they don't include these mentions.) What are your thoughts on this?