Telegram RegisterThe public register of Telegram

Channel

KOSTROMA OPEN

@kostroma_open

On this record: Growth · Engagement · Reactions · Posts · Citations · Cite this entry

1,673subscribers

-1 since we began measuring on 7 August 2026

Risers and fallers across the register · movement among entries of 1,000–3,162.

Register entry

Telegram ID-1001630444740
TypeChannel
Username@kostroma_open
CreatedBetween 1 December 2021 and 31 March 2023— estimated from Telegram’s id allocation, not measured. How this range is calculated.
First recorded7 August 2026
Last confirmed live13 August 2026
Measurements held3
Confirmed unchanged1 time, most recently 13 August 2026
On Telegramt.me/kostroma_open

Growth

1,6731,6741,673.57 August 2026 — 1,674 subscribers7 August 2026 — 1,674 subscribers13 August 2026 — 1,673 subscribers7 August 202613 August 2026
3 measurements spanning 7 days, net -1. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 1,673–1,674 and does not start at zero.
Measurement log — every subscribers count we have recorded
Measured (UTC)SubscribersChange
13 Aug 2026, 23:381,673-1
7 Aug 2026, 09:321,674no change
7 Aug 2026, 09:261,674first reading

Engagement

17 posts held, back to 4 December 2025the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 2 pagesof 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 17 posts for this entry, the most recent from 2 July 2026. An engagement rate over an empty window would be a number about nothing.

Reaction mix

282 reactions across 15 posts, in 9 distinct kinds. The most used accounts for 61.7% of them.

Every reaction kind recorded on the sample, most used first
ReactionCountShareShare, drawn
🔥17461.7%
7928.0%
👍144.96%
🥴62.13%
🖕41.42%
🍾20.709%
💅10.355%
😁10.355%
🙊10.355%

No sentiment is inferred, and none should be read in. This table is ordered by count and by nothing else. Emoji do not carry stable meaning across languages or communities — 🙏 is thanks in one channel and mourning in another — so we publish which ones were pressed and how often, and pass no judgement on what an audience meant by them.

Precision. Telegram publishes reaction counts per emoji and short-forms each one — 4.34K, 1.2M — so any single kind at or above 1,000 reaches us at three significant figures, and only counts below 1,000 are exact. The shares above are ratios of those figures and carry the same error. This is also why the total here can differ slightly from a reaction total printed elsewhere on the page: both are sums of the same rounded parts, taken over samples with different edges.

Coverage. Reactions were read on 15 of the 17 sampled posts in this sample. Summed by Telegram’s own count on each post — not by adding up the per-emoji breakdown above — those same posts carry 282reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.

Measured over the 17 most recent posts we hold, published 4 December 2025 to 2 July 2026, using the newest reading held for each. Telegram Stars are excluded: they are a payment, not a reaction, and they have their own section.

Recent posts

2 Jul 2026, 11:54 UTC≈1,030 views66 reactionsread 7 August 2026
Photo

ЛМШ Kostroma Open 2026 Закончились вакантные места в нашу ЛМШ-2026. Мы собрали прекрасный набор из около 160 учеников. Нас ждёт прекрасная смена.

🔥539🍾2💅1🙊1

Signed Dmitry Kalinin

15 Jun 2026, 10:12 UTC≈3,210 views1 reactionsread 7 August 2026

ЛМШ Kostroma Open 2026 1. Зачисленные ЛМШата получили письма со ссылками на группу для координации. 2. У нас остались отдельные места в разных параллелях. Если есть какие-то успехи в математики, то можно еще попробовать подать заявку и попасть в ЛМШ. https://docs.google.com/forms/d/e/1FAIpQLSdELsEie0705uIPpbpLn04RlfmfiV355FKrUBgtJLOy3GNSnw/viewform?usp=dialog

🔥1

Signed Dmitry Kalinin

13 May 2026, 05:58 UTC≈3,460 views13 reactionsread 7 August 2026

Доброе утро, дорогие подписчики! Предлагаем обратить своё внимание на математический класс, работающий в школе № 2086 под руководством Эммы Артуровны Акопян. В мае-июне пройдут вступительные испытания (добор) для поступающих в 7 математический класс. Руководит набором и ведёт математику Э.А. Акопян, учитель высшей категории, методист Центра Педагогического Мастерства, член жюри и методических комиссий различных олим

13

Signed Эмма Артуровна Акопян

14 Apr 2026, 10:18 UTC≈3,030 views1 reactionsread 7 August 2026

ЛМШ Kostroma Open 2026 Сегодня еще около 70 человек получат приглашение зачисляться в ЛМШ. Также отправлены напоминания о регистрации ЛМШатам прошлого года. Подать заявку еще можно. Ссылка: https://docs.google.com/forms/d/e/1FAIpQLSdELsEie0705uIPpbpLn04RlfmfiV355FKrUBgtJLOy3GNSnw/viewform?usp=dialog

👍1

Signed Dmitry Kalinin

7 Apr 2026, 11:45 UTC≈3,050 views18 reactionsread 7 August 2026
Photo

ЛМШ Kostroma Open 2026 Первые зачисления уже прошли. Около 30 человек уже в списках зачисленных. Первые зачисления будут по анкетам. Особенно ждём, когда зарегистрируются ЛМШата 2025 года. Далее на свободные места, возможно, будет отбор. Регистрация и информация о смене здесь: https://docs.google.com/forms/d/e/1FAIpQLSdELsEie0705uIPpbpLn04RlfmfiV355FKrUBgtJLOy3GNSnw/viewform?usp=dialog

👍8🔥73

Signed Dmitry Kalinin

15 Mar 2026, 15:55 UTC≈3,260 viewsread 7 August 2026

Дорогие друзья, уже в следующее воскресенье ждём вас на семейном фестивале! Немного мест ещё есть.😊

Signed Эмма Артуровна Акопян

9 Mar 2026, 11:37 UTC≈6,070 views20 reactionsread 7 August 2026

ЛМШ KOSTROMA OPEN 2026 Анкета для желающих быть нашим ЛМШонком в 2026 году: https://docs.google.com/forms/d/e/1FAIpQLSdELsEie0705uIPpbpLn04RlfmfiV355FKrUBgtJLOy3GNSnw/viewform?usp=dialog

🔥126👍2

Signed Dmitry Kalinin

9 Mar 2026, 11:19 UTC≈8,190 views37 reactionsread 7 August 2026
Photo

ЛМШ KOSTROMA OPEN 2026 Летняя школа пройдёт с 20 июля по 7 августа 2026 года на базе отдыха "Салют" (Пушкинский район, МО).

🔥361

Signed Dmitry Kalinin

5 Mar 2026, 10:45 UTC≈2,530 views11 reactionsread 7 August 2026
Photo

Одна голова хорошо, а две лучше! Лицей им.С.Н.Нюберг и проект Kostroma Open снова ПРИГЛАШАЮТ В СТРАНУ ГОЛОВОЛОМИЮ на семейный квест для детей 6+ и их родителей. О прошедшем мероприятии читайте здесь. Хотите провести выходной необычно и с пользой? 22 марта вас ждёт настоящее волшебное приключение в мире загадок, механизмов и логических открытий! 🏆 Что будет? — Командное соревнование семей в скорости решения механич

10👍1

Signed Эмма Артуровна Акопян

5 Feb 2026, 15:05 UTC≈3,440 views28 reactionsread 7 August 2026
Photo

Мы каждый раз стараемся делать футболки для турниров с математическими объектами или фактами. Иногда удаётся делать про свежие факты. А в этом уч. году история с футболкой про свежий факт об узлах дошла до статьи в журнале "Квантик". Покупайте и читайте новый (февраль 2026) номер.

🔥244

Signed Dmitry Kalinin

3 Feb 2026, 20:04 UTC≈3,000 views18 reactionsread 7 August 2026
Photo

Провели разговор с родителями о математическом образовании в школьные годы. Об олимпиадах и вступительных испытаниях "с изнанки", как это видят организаторы. О сочетании базовой и олимпиадной математики в среднем звене школы. Ответы на наболевшие вопросы. Есть желание поучаствовать в подобной встрече - пишите в комментарии. Картинка сгенерирована по запросу "родители математика" 😁

12🔥5😁1

Signed Dmitry Kalinin

2 Feb 2026, 12:14 UTC≈14,500 views9 reactionsread 7 August 2026
Photo

Одна голова хорошо, а две лучше! Лицей им.С.Н.Нюберг и проект Kostroma Open снова ПРИГЛАШАЮТ В СТРАНУ ГОЛОВОЛОМИЮ на семейный квест для детей 6+ и их родителей. О прошедшем мероприятии читайте здесь. Хотите провести выходной необычно и с пользой? 22 марта вас ждёт настоящее волшебное приключение в мире загадок, механизмов и логических открытий! 🏆 Что будет? — Командное соревнование семей в скорости решения механич

🔥62🖕1

Signed Эмма Артуровна Акопян

Showing the 12 most recent of 17 posts we hold for @kostroma_open. 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.

Citation-graph rank

Citation-graph rank — 398,022 of 1,345,403entries in the measured graph. A weighted position computed from the forward and mention edges below — republished posts weigh more than named mentions — and recomputed periodically, over the whole graph. Published only as this ordinal position, never as a score: a position is a fact, and a score printed beside one channel’s name would read as a verdict this register does not make. The two counts beneath stay separate for the same reason mentions are never summed with forwards anywhere else on this page — a named-by count costs nothing to manufacture. The top 100 by this measure, or how it is computed.

Forward network

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.

Mentions

Named by 1 registered channel — 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.

Names

Channels on the register whose handles appear in this channel's posts.

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.

Cite this entry

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 13 August 2026 — this entry's latest reading, not the date you are reading this.

“KOSTROMA OPEN” (@kostroma_open), 1,673 subscribers as measured 13 August 2026. Telegram Register, tgregister.com/channel/kostroma_open.

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.