Channel
@u_ctf
On this record: Topic · Growth · Engagement · Posts · Citations · Cite this entry
231subscribers
-5 since we began measuring on 6 August 2026
Risers and fallers across the register · movement among entries of Under 1,000.
| Telegram ID | -1001191694523 |
|---|---|
| Type | Channel |
| Username | @u_ctf |
| Created | Between 1 March 2018 and 31 July 2021 — estimated from Telegram’s id allocation, not measured. How this range is calculated. |
| First recorded | 7 August 2026 |
| Last confirmed live | 12 September 2026 |
| Measurements held | 5 |
| Confirmed unchanged | 1 time, most recently 12 September 2026 |
| On Telegram | t.me/u_ctf |
Technology — a classification, not a measurement. An on-box language model (Qwen3.6-35B-A3B-FP8, prompt version 1) read this channel’s own recent posts on 23 September 2026 and assigned it the closest of 31 fixed categories, at 68% confidence. This is a model’s judgement about what the channel is likely to be about, not a fact this register measured the way a subscriber count or a view count is measured — it can be revised on a later pass, and it carries no weight anywhere else on this page. How this classification works, and why it has no browse page of its own yet.
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 12 Sept 2026, 21:21 | 231 | -3 |
| 5 Sept 2026, 03:41 | 234 | -1 |
| 22 Aug 2026, 16:33 | 235 | -1 |
| 7 Aug 2026, 02:46 | 236 | no change |
| 6 Aug 2026, 15:39 | 236 | first reading |
20 posts held, back to 4 September 2023 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 1 page of Telegram’s post history, 20 posts per page.
Nothing published in the last 30 days. ERR and ER are rolling 30-day measures, so there is nothing to compute — we hold 20 posts for this entry, the most recent from 16 October 2024. An engagement rate over an empty window would be a number about nothing.
🚀 Exciting Announcement! UCTF 2024 Resources Fully Open-Sourced! 🎉 Dear UCTF Community, We are excited to share that all resources for UCTF 2024—including challenges, scores, and detailed write-ups—are now fully open-sourced! You can explore and contribute to them on our official GitHub repository: 🔗: UCTF 2024 GitHub Repository Thank you for being part of this journey. Stay tuned for UCTF 2025—the work has alrea…
Execution Write Up in UCTF2024 https://youtu.be/HVBPM8_lbmw?si=yf4gvUwJLvYJ-_gp Join Our YouTube Channel
🌟 Weight Voting for UCTF-2024 is Now Open! 🌟 Hey UCTF-2024 Participants! 🚩 We’re excited to announce that Weight Voting has officially started and will be open until Sept. 16, 2024, noon. We would really appreciate your votes as they are crucial for us to get your feedback and make next year's competition even better! 💪🏻 This is your chance to let us know how we did and help shape the future of UCTF. Your voice ma…
🏁 UCTF-2024: A Journey to Remember! 🎉🎯 As UCTF-2024 comes to an end, it has truly been an unforgettable experience. Though the competition began with a 4-hour delay on the first day ⏳, things improved steadily, turning into a memorable event for all of us. 🏅 The scoreboard has now been unfrozen and is visible on our website. Congratulations to the top 3 teams! 🎖 🥇 TRX (7900 points) 🥈 FlagMotori (7800 points) 🥉 Minu…
Scoreboard Frozen Until Competition End 🏁 Dear Participants, Please be advised that the scoreboard is now frozen and will remain frozen until the conclusion of the competition. While you can continue to solve challenges and earn points, your scores will not be reflected on the scoreboard until the final results are announced. Stay focused, and give it your all in these final stages! 💪 Best regards, UCTF 2024 Orga…
Challenge Hints Released: Navigate Your Path to Victory! 🌟 Dear Participants, Exciting news! We’ve just provided hints for several key challenges of the competition. Here’s what you need to know: - Silent Knocker - Travel Guide - Drag n Zip - The Road of Redemption - VLAN Wars These hints are crafted to assist you in overcoming these challenges without any penalties. Our team is also hard at work on deploying an…
Heritage Encryption Challenge Unveiled: 500 Points of Pure Evil! 🏺 Dear Participants, Brace yourselves, for the first challenge of Stage 4 is here! 🔥 We’ve just revealed the "Heritage Encryption" challenge, an epic 500-point puzzle in the OSINT category—designed to test the limits of even the most skilled competitors. ⚔️ Do you have what it takes to decipher the riddles of the past and claim the ultimate flag? Or …
"All Stage 3 Challenges Revealed! 🚀" Dear Participants, We are thrilled to announce that all challenges of Stage 3 have now been revealed! 🎯 These include: - Drag n Zip - Rasa - Karaball - Catch Me If You Can! - Silent Knocker Dive into these new challenges and give it your best shot! Stay tuned as we prepare for the upcoming fourth stage. 🏆 Best of luck! 🍀 Best regards, UCTF 2024 Organizing Team
New Challenges Unlocked: 10 More Challenges Revealed! 🚀 Dear Participants, We are excited to announce that 10 additional challenges have been revealed for the second stage of the competition! 🎯 Test your skills and dive into the new challenges below: - Travel Guide - ASCII Art Studio - Hidden Coordinates - REVNG - Modal 2 - Orange - The Road of Redemption - Sergio - ADB - Paho Puzzle Jump in and show us what you…
Dear Participants, We are pleased to announce that we've successfully resolved the technical challenges we faced earlier. It’s been a tough few hours, as an issue with the file system of our main platform (CTFd) turned into a more complex problem. However, everything is now functioning as intended. ✅🎉 After approximately 4 hours of hard work, we are ready to officially kick off the competition. To make up for the d…
⚠️ Dear Participants, We regret to inform you that we are currently facing a technical issue with CTFd, our primary competition platform. Our team is working diligently to resolve this matter as quickly as possible. 🙏🏻 We sincerely apologize for the inconvenience and appreciate your understanding during this time. We are doing everything we can to have the platform back up and running within the next few hours. You…
📢 Important Update: 30-Minute Delay Dear Participants, We regret to inform you that the start of UCTF-2024 will be delayed by 30 minutes due to unforeseen circumstances. ⏳ We appreciate your understanding and patience, and we’ll be ready to kick off shortly! Stay tuned for further updates. 🔜 Best regards, UCTF 2024 Organizing Team
Showing the 12 most recent of 20 posts we hold for @u_ctf. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked ≈ was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.
Republished by
Channels on the register that have forwarded this channel's posts into their own feed.
Built only from forwarded posts we have actually read, on both sides. Coverage is early and deliberately incomplete: a missing link means we have not read the post that would prove it, never that the relationship does not exist. Counts are distinct forwarded posts observed, so they only ever go up as we read more.
Named by 2 registered channels — every channel on the register whose own posts have named this one, by its current username or any other username it currently holds, merged from two separately captured readings of the same fact so a namer caught by only one of them is not missed and a namer both caught is not counted twice. A username this channel has since dropped is not matched — that handle may belong to someone else now, and crediting today’s namer to yesterday’s owner would misattribute it.
Named by
Channels on the register whose posts name this channel's handle.
A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.
A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 12 September 2026 — this entry's latest reading, not the date you are reading this.
“UCTF” (@u_ctf), 231 subscribers as measured 12 September 2026. Telegram Register, tgregister.com/channel/u_ctf.
Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.