Hi,
Blank node IDs in RDF/XML cannot start with a digit; this violates the XML
NCName production.
Demonstration (rdfxml is Jena's CLI parser command):
martynas@Mac Web-Algebra % curl -s '
https://www.wikidata.org/wiki/Special:EntityData/Q1748.rdf' | rdfxml
--validate
23:17:20 WARN riot :: [line: 2746, col: 59] Not a valid XML
NCName: '55c480cd2d6a851b4251aa9da3299e48'
23:17:20 WARN riot :: [line: 6195, col: 68] Not a valid XML
NCName: '2fb5c2af36e460068b89a8ca39c8bbcd'
23:17:20 WARN riot :: [line: 6197, col: 65] Not a valid XML
NCName: '2fb5c2af36e460068b89a8ca39c8bbcd'
23:17:20 WARN riot :: [line: 6252, col: 68] Not a valid XML
NCName: '67baa1dbbc8d4f6b0b3d4a74a3ee0290'
23:17:20 WARN riot :: [line: 6254, col: 65] Not a valid XML
NCName: '67baa1dbbc8d4f6b0b3d4a74a3ee0290'
23:17:20 WARN riot :: [line: 6309, col: 68] Not a valid XML
NCName: '0b8bd71b926a65ca3fa72e5d9103e4d6'
23:17:20 WARN riot :: [line: 6311, col: 65] Not a valid XML
NCName: '0b8bd71b926a65ca3fa72e5d9103e4d6'
23:17:20 WARN riot :: [line: 6394, col: 68] Not a valid XML
NCName: '1d2a8f0c3b3451be4d4228f97153e08d'
23:17:20 WARN riot :: [line: 6396, col: 65] Not a valid XML
NCName: '1d2a8f0c3b3451be4d4228f97153e08d'
23:17:20 WARN riot :: [line: 6444, col: 68] Not a valid XML
NCName: '3de19c92e209926f02f215095eb4fd12'
23:17:20 WARN riot :: [line: 6446, col: 65] Not a valid XML
NCName: '3de19c92e209926f02f215095eb4fd12'
23:17:20 WARN riot :: [line: 6494, col: 68] Not a valid XML
NCName: '098a7705e988116e3a454eda03aef6ad'
23:17:20 WARN riot :: [line: 6496, col: 65] Not a valid XML
NCName: '098a7705e988116e3a454eda03aef6ad'
23:17:20 WARN riot :: [line: 6551, col: 68] Not a valid XML
NCName: '06be9361e78d041ce01df69013cf6906'
23:17:20 WARN riot :: [line: 6553, col: 65] Not a valid XML
NCName: '06be9361e78d041ce01df69013cf6906'
...
Martynas
atomgraph.com
Hello,
Can someone please help me work out what the P31 (instance of) statement and description should be for this Wikidata item?
https://www.wikidata.org/wiki/Q16533984
I have been going through the items with Grove Music Online IDs<https://www.wikidata.org/wiki/Property:P8591> and adding missing P31.
But this one is challenging! It is kind of a ’subject’ or ’topic of discussion’ in the domain of music history.
There is a sitelink to a Russian Wikipedia page about it and the Grove article about it (in English but requires a subscription).
Thanks!
nick.
TLDR: WikiProjects Days 2026 online June 19-21. Program is out. Still space
for lightning talks about your favorite WikiProject. Sign up on the event
page to get the access link
<https://www.wikidata.org/wiki/Special:RegisterForEvent/3670>.
Hello everyone,
The program for WikiProject Days 2026 is now live. The event takes place
online from June 19 to 21. Check out the full program here Event:WikiProjects
Days 2026#Sessions
<https://www.wikidata.org/wiki/Event:WikiProjects_Days_2026#Sessions>
*We have a great mix of sessions, including:*
- State of the art of tools for WikiProjects: what do we have, what is
missing?
- Understanding the universe of WikiProjects on Wikidata
- Live editing: improve a WikiProject page together
- How do you find what needs fixing in your WikiProject?
- WikiProject Ontology needs you
- Quick-Start guidelines for editors joining complex WikiProjects
- And more: including Wikidata games and a bug triage hour.
Most sessions are interactive. We welcome your questions, comments, and
active participation.
*Still Want To Present?*
There is still space left in our showcase session for short lightning talks
(5-10 minutes) about your favorite WikiProject. Just add your idea on the talk
page <https://www.wikidata.org/wiki/Event_talk:WikiProjects_Days_2026>
before June 15:
*How To Join*
To receive the access link, you need to sign up on the event page. Click on
the "Register" tab and enter your details. Registration is free and open to
everyone. If you already registered, you can already find the link in the event
details <https://www.wikidata.org/wiki/Special:EventDetails/3670>.
We look forward to seeing you there.
Cheers,
--
Mohammed S. Abdulai
*Senior Community Communications Manager, Wikidata*
Wikimedia Deutschland e. V. | Tempelhofer Ufer 23-24 | 10963 Berlin
Phone: +49 (0) 30 577 116 2466
https://wikimedia.de
Grab a spot in my calendar for a chat: cal.com/masssly.
A lot is happening around Wikidata - Keep up to date!
<https://www.wikidata.org/wiki/Wikidata:Status_updates> Current news and
exciting stories about Wikimedia, Wikipedia and Free Knowledge in our
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Hello,
Next week on tuesday, 23 June, at 8:00UTC is the next Global GLAM Call.
Please be sure to register in advance to receive the Zoom link in time to
join the call.
This month we’re very happy to count on simulatenous interpretation in
Arabic, French, and Kiswahili! Spread the word.
On the agenda we have info about the Wikimania Hackathon, a GLAM Tool
Hospital, Spatial Reconstruction, info about Event Registration extension
from WMF, and a preview of the new Content Partnerships Hub visual identity!
Hope to see you online.
https://meta.wikimedia.org/wiki/Event:Global_GLAM_call_2026-06-23#Introduct…
Best,
Connor
Hi everyone,
I am excited to announce the launch of *WikiLounge*, a new, always-on IRC
web client and bouncer built specifically for the Wikimedia community and
hosted securely on Wikimedia Cloud Services (WMCS).
For many Wikimedians, IRC remains a vital platform for real-time
collaboration, seeking help, and monitoring projects. However, traditional
IRC drops your connection when you close your browser or go offline,
causing you to miss out on conversations while you are away.
WikiLounge solves this by acting as a persistent bouncer. It keeps your IRC
presence active 24/7 on Libera.Chat network. When you log back in via your
web browser or mobile device, you can read all the channel history and
private messages you missed.
We have just completed a major upgrade and deployed a new *Unified Web
Dashboard* to make joining and managing your account as easy as possible.
*Key Features:*
- *Always-On Connection:* Catch up on missed messages when you return.
- *Mobile-Friendly:* A clean, responsive web interface powered by
open-source software (The Lounge).
- *Automated Self-Service:* Securely log in using your Meta-Wiki account
via OAuth to request access, change your server password, or declare a
"Wikibreak" to pause inactivity limits.
*How to join:* To protect server resources and prevent abuse, WikiLounge
requires users to have at least 500 global edits across Wikimedia projects.
If you meet the requirements and would like an account, you can read the
full documentation and apply directly through the new automated portal:
- *Documentation:* https://meta.wikimedia.org/wiki/IRC/WikiLounge
- *Public Portal:* https://wikilounge.wmcloud.org/
If you have any questions, feel free to reach out to me, drop a task in
Phabricator under the *WikiLounge* project, or join us in our newly
created IRC channel *#wikimedia-lounge.*
Regards,
User:ZI Jony
Save the date: The ** MediaWiki Users and Developers Conference ** (MUDCon) will take place in ** Ljubljana, Slovenia, from November 11-13 **
This event brings together developers, system administrators, researchers, and practitioners working with MediaWiki and related knowledge technologies, including Semantic MediaWiki and Wikibase.
MUDCon is a space for sharing practical experience, discussing new developments, and connecting across domains such as open knowledge, research infrastructure, and GLAM (Galleries, Libraries, Archives, and Museums).
Further details including a call for participation will be announced soon.
More information:
https://www.semantic-mediawiki.org/wiki/MediaWiki_Users_and_Developers_Conf…
We look forward to welcoming you!
MUDCon Fall 2026 is sponsored by
KM-A - https://km-a.net | MyWikis Europe - https://mywikis.eu | Professional Wiki - https://professional.wiki
The event is co-organized by the MediaWiki Stakeholder's Group, the ECHOLOT project and the Jožef Stefan Institute!
Christian Erlinger and the MUDCon organizing team.
mailto:christian.erlinger@km-a.net