✅Gs-2 : Governance/Welfare- Deen Dayal Upadhyaya- Grameen Kaushalya Yojana (DDU-GKY) 2.0 ✅Gs-3 : Unemployment - how to redesign the system to generate quality jobs?- Click here and here 📌If you are worried about CONSISTENT and STRUCTURED coverage of Current affairs- please do consider the VERITAS program of VK IAS-Click here 🎖Join @hinduhighlights for News analysis @upschighlights -for Prelims- Click here 🎖Ple…

Channel
VK IAS by Vikas kanukollu (VK)
@hinduhighlights
On this record: Topic · Growth · Engagement · What this channel posts · Posts · Posts edited after publishing · Polls · Citations · Telegram's recommendations · Cite this entry
134,319subscribers
-386 since we began measuring on 6 August 2026
Risers and fallers across the register · movement among entries of 100,000–316,228.
Register entry
| Telegram ID | -1001221577305 |
|---|---|
| Type | Channel |
| Username | @hinduhighlights |
| Description | Trying to be the person that my younger self needed🙂. Pls Read the pinned messages and FAQs before texting me Enquiries : @vk_ias Contact - @vikas_kanukollu |
| Created | Between 1 March 2018 and 31 July 2021 — estimated from Telegram’s id allocation, not measured. How this range is calculated. |
| First recorded | 6 August 2026 |
| Last confirmed live | 18 September 2026 |
| Measurements held | 34 |
| Confirmed unchanged | 1 time, most recently 18 September 2026 |
| On Telegram | t.me/hinduhighlights |
Topic
Education — a classification, not a measurement. An on-box language model (Qwen3.6-35B-A3B-UD-Q6_K_XL, prompt version 1) read this channel’s own recent posts on 9 August 2026 and assigned it the closest of 31 fixed categories, at 100% 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.
Growth
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 18 Sept 2026, 20:00 | 134,319 | +244 |
| 16 Sept 2026, 09:55 | 134,075 | -52 |
| 14 Sept 2026, 17:01 | 134,127 | -89 |
| 13 Sept 2026, 03:58 | 134,216 | -116 |
| 11 Sept 2026, 02:36 | 134,332 | -226 |
| 8 Sept 2026, 07:15 | 134,558 | -179 |
| 5 Sept 2026, 04:16 | 134,737 | -75 |
| 3 Sept 2026, 08:37 | 134,812 | -41 |
| 2 Sept 2026, 00:15 | 134,853 | -108 |
| 1 Sept 2026, 00:47 | 134,961 | -49 |
| 31 Aug 2026, 00:44 | 135,010 | -55 |
| 30 Aug 2026, 01:56 | 135,065 | -23 |
| 29 Aug 2026, 00:38 | 135,088 | -42 |
| 28 Aug 2026, 02:53 | 135,130 | -53 |
| 26 Aug 2026, 23:39 | 135,183 | +27 |
| 25 Aug 2026, 22:18 | 135,156 | +34 |
| 25 Aug 2026, 00:46 | 135,122 | +41 |
| 23 Aug 2026, 13:42 | 135,081 | +127 |
| 22 Aug 2026, 00:15 | 134,954 | +119 |
| 20 Aug 2026, 17:22 | 134,835 | first reading |
Engagement
68 posts held, back to 2 July 2026 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 99 pages of Telegram’s post history, 20 posts per page.
- ERR · 30 days
- 5.08%
- avg views ÷ 134,319 subscribers
- Avg views / post
- 6,820
- 29 posts measured
- Reaction rate
- —
- this channel exposes no reaction counts
- Posts in window
- 29
- of 68 held
ERR is average views per post over the last 30 days divided by subscribers, the definition TGStat uses, so this figure is comparable with the one you will see elsewhere. It falls structurally as a channel grows: a high ERR on a small channel and a low one on a large channel describe reach mathematics, not quality. We publish the figure and the sample it came from and pass no verdict on it.
ER is defined industry-wide as (forwards + reactions + comments) ÷ views — note the denominator is views, not subscribers. Telegram’s public web preview carries views and reactions but not forward or comment counts, so the reaction rate above is the reactions term only and is therefore a floor: the true ER for this channel is higher by an amount we have not measured and will not estimate.
| Window | Rolling 30 days · latest post in window 22 September 2026 |
|---|---|
| Posts held | 68 (2 July 2026 – 22 September 2026) |
| Views total | 197,850 |
| Reactions total | — |
| Forwards / comments | not exposed by the public surface — not measured, not estimated |
| Readings taken | 23 Sept 2026, 08:50 UTC |
Views are a single reading per post, taken at the time above. A post published in the last day or two is still accumulating views, which pulls the 30-day average down slightly. That is a property of the standard definition rather than a fault in it, so we keep the definition rather than “correcting” the number into something nobody can reproduce.
Precision. Telegram publishes view counts on its public widget in short form — 8.12K, 3.7M — so any reading at or above 1,000 reaches us rounded to three significant figures, and only counts below 1,000 are exact. Averages and rates derived from them are shown to the same precision rather than to the unit: a figure like 3,701,250 would assert digits nobody measured.
Reaction counts are published per emoji and rounded the same way, so a total below 1,000 is exact and a larger one is a sum that may carry a rounded component from each emoji above 1,000. Because it is a sum, it does not look rounded — read a large reaction total as three significant figures per contributing emoji rather than as the figure it prints.
What this channel posts
- Photos
- ≈8,670
- Videos
- ≈34
- Links
- ≈6,020
Lifetime counters from Telegram’s own channel header, read 23 September 2026 — not the date at the top of this page, which is when the subscriber count was last read. A count marked ≈ was rounded by Telegram before we ever saw it — t.me prints these counters in full below 1,000 and to three significant figures above, so ≈142,000 means somewhere between 141,500 and 142,499.
- Video runtime
- 10s
- Average length
- 10s
Measured directly from 1 video with a duration reading, out of the posts we hold for this channel — not this channel’s whole posting history, only the sample this register has actually read. An exact reading to the second, taken from the post itself rather than from Telegram’s own rounded chrome, so it carries no ≈ mark.
Recent posts
✅GS2- Self Help Groups- Importance of civil society for democracy- role NGO and cooperative societies 🔴Basics to be understood: FERA, FEMA, FCRA differences- Click here 📌An organisation may reshape its activities to secure funding rather than respond to locally identified needs.Note that NGOs can complement public institutions, but philanthropy cannot replace the State’s responsibility for universal and equitable p…
Why is your timetable not working for you?- the science behind it! -UPSC 2027 https://youtu.be/I92V-kgTz9U
ALERT : PIB's Monthly Magazine- How to use this? #upsccse #civilserviceexam https://youtube.com/shorts/CHn0CPIXrxY?feature=share
✅Gs-3 - Labor and unemployment 🅾️India does not have one labour market; it has hundreds of locally differentiated labour ecosystems. 🅾️Upsc previously asked a question: Most of the unemployment in India is structural in nature. Examine the methodology adopted to compute unemployment in the country and suggest improvements. 🅾️The revised PLFS design, introduced in January 2025, treats districts rather than larger …
✅Gs-3 - Internal security ✅Gs-3- Economic growth 🅾️GS-3, 2020: Discuss different types of cyber crimes and measures required to be taken to fight the menace. Although commercial spam is not always cybercrime, spam infrastructure is frequently used for impersonation, phishing and financial fraud. So this news becomes important that way 📌Telecom providers must identify high-probability spam numbers using AI/ML a…
How to manage your speed and time in UPSC mains? #upsccse #civilserviceexam https://youtube.com/shorts/uJSkAENRSNA?feature=share
✅Gs-3 : Economic growth - Energy atmanirbharta- Why E20?- Click here ⚠️Impact ⚜️1. E20 may reduce petroleum use, but lower mileage and diversion of agricultural produce can offset gains.Achieving a blending target establishes implementation progress; it does not by itself establish net welfare gains. ⚜️2. Ethanol’s lower energy content can reduce mileage; the effect depends on vehicle design and calibration.The…
✅Gs-3 : Science and technology- R&D issues- Metascience-ANRF ⚠️Do longer, flexible grants generate more original work than short grants with frequent reporting requirements?- The Anusandhan National Research Foundation (ANRF) has a statutory mandate covering strategic direction, promotion, monitoring and support of research. This provides a relevant setting for stronger evaluation capacity. 📌India needs a balanced …
✅Gs-2 : IR - West Asia- The Makkah Pact - competing interpretations of the MAKKAH agreement: ⚜️Interpretation A = Greater regional autonomy: New partnerships may reduce reliance on a single external security provider. ⚜️Interpretation B = Burden-sharing within a U.S.-centred order: Regional states may assume more responsibility while continuing to depend on American equipment, intelligence and support. ⚜️MY TAKE =…
✅Gs-1 : Geography - Mines and Minerals ✅Gs-2 : Federalism- Mining ✅Gs-3 : Environment- Mining issues 📌Issue : Mines and Minerals- Constitutional provisions- click here 🅾️Mineral-rich States, including Odisha, Jharkhand, Chhattisgarh and Karnataka, face: ⚜️Displacement and rehabilitation costs. ⚜️Environmental restoration and public-health needs. ⚜️Heavy demand on roads, water and public infrastructure. ⚜️Long-ter…
✅Gs-1 : Geography: Climate change-Hindu kush mountain range ✅Gs-3 : Climate change- India's umbrella plan for dealing with climate change - NAPCC- NMSHE ✅Gs-3 : DM- Risk-informed infrastructure planning ⚠️How to use this? 📌1. As a Case Study in GS-1/GS-3: When writing on the carrying capacity of the Himalayas 📌2. As an Argument in GS-3 (Energy Transition): "Clean" does not automatically mean "ecologically viable…
Showing the 12 most recent of 68 posts we hold for @hinduhighlights. 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.
Posts edited after publishing
@hinduhighlights edited 1 post after it first published — the same permalink now carries different wording than the one this register originally read, caught because our own crawl held a copy of the earlier text.
An edit is not deception. Typo fixes, price updates and corrections look exactly like this too — this register can tell you the wording changed and when, not why. How this is measured.
- First edit seen
- 12 September 2026
- Most recent edit
- 12 September 2026
Polls
The 2 polls we hold for this entry, as Telegram rendered them when we read the post. A poll’s figures keep moving after that, so each one is dated.
What is your BIGGEST problem with Current Affairs?
- I don’t know what to read26%
- I read but don’t remember42%
- I can’t connect news with static/PYQs31%
- I make too many notes13%
- I can’t revise before the exam30%
The shares total 142%, above 100: this poll accepts more than one answer per voter. No per-option vote count is published, so the number of voters who chose each option is not derivable and is not shown.
How much time do you spend on Current Affairs daily?
- 30-45 min21%
- 1 hour31%
- 2 hours16%
- I have given up12%
- I have no clue on how to handle CA21%
Shares as published, totalling 101%. No per-option vote count is published by Telegram, so none is shown.
Percentages only — there are no per-option vote counts here, because Telegram publishes none. The public post preview gives each option’s share and a single voter total, and nothing else. Multiplying one by the other would produce a per-option tally that looks measured and is not: the shares are rounded to whole numbers before we ever see them. We print what was published and leave the column that does not exist empty.
The shares need not add up to 100. Rounding alone puts many polls at 99 or 101. A poll that allows more than one answer per voter runs well past 100 by design, and several here do. The bars are drawn against a fixed 100% track at each option’s own percentage rather than normalised to the total, so a poll that exceeds it shows that it does instead of being quietly rescaled.
Read from the 68 most recent posts we hold, published 2 July 2026 to 22 September 2026. Telegram labels each poll by kind — an anonymous poll, a quiz, a closed set of final results — and that label is reproduced rather than paraphrased.
Forward network
Republished by
Channels on the register that have forwarded this channel's posts into their own feed.
@Quizhighlights · 19,04610 postsVK IAS - UPSC interviews
@UPSC_Interviews · 12,26610 postsVK IAS- prelims (UPSC highlights)
@upschighlights · 55,1475 postsVK IAS- UPSC Environment by Vikas kanukollu
@ecologyhighlights · 19,6083 postsExplained- Aasan Bhasha- Vikas Kanukollu
@vikaskanukollu · 11,6303 postsVK IAS Geography current Affairs for UPSC
@Geohighlights · 21,2222 postsUPSC Ethics by VK IAS
@Upsc_ethics_notes · 44,4432 postsUPSC - International relations by Vikas Kanukollu
@UPSC_PSIR_IR · 17,0701 postVK IAS - (Science and technology)
@sciencehighlights · 20,3581 post
Republishes
Channels on the register whose posts this channel has forwarded.
@UPSC_PSIR_IR · 17,0706 postsVK IAS Geography current Affairs for UPSC
@Geohighlights · 21,2224 postsUPSC Economy by VK IAS (Vikas Kanukollu)
@economyhighlights · 20,5354 postsVK IAS - (Science and technology)
@sciencehighlights · 20,3583 postsVK IAS- UPSC Environment by Vikas kanukollu
@ecologyhighlights · 19,6081 post
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 11 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.
@UPSC_Interviews · 12,26668 postsVK IAS- UPSC Environment by Vikas kanukollu
@ecologyhighlights · 19,60846 postsUPSC Economy by VK IAS (Vikas Kanukollu)
@economyhighlights · 20,53546 postsVK IAS- prelims (UPSC highlights)
@upschighlights · 55,14737 postsVK IAS Geography current Affairs for UPSC
@Geohighlights · 21,22231 postsVK IAS - Prelims Quiz.
@Quizhighlights · 19,04628 postsExplained- Aasan Bhasha- Vikas Kanukollu
@vikaskanukollu · 11,63027 postsVK IAS - (Science and technology)
@sciencehighlights · 20,35820 postsUPSC - International relations by Vikas Kanukollu
@UPSC_PSIR_IR · 17,07012 postsUPSC Ethics by VK IAS
@Upsc_ethics_notes · 44,4438 postsVK IAS(UPSC Highlights)- History
@historyhighlights · 21,3217 posts
Names
Channels on the register whose handles appear in this channel's posts.
@upschighlights · 55,1477 postsUPSC - International relations by Vikas Kanukollu
@UPSC_PSIR_IR · 17,0706 postsVK IAS Geography current Affairs for UPSC
@Geohighlights · 21,2224 postsUPSC Economy by VK IAS (Vikas Kanukollu)
@economyhighlights · 20,5352 postsVK IAS - (Science and technology)
@sciencehighlights · 20,3582 postsUPSC Ethics by VK IAS
@Upsc_ethics_notes · 44,4432 postsData and Facts for UPSC- VK IAS
@vikas_kanukollu1 · 14,9041 post
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.
Channels Telegram recommends alongside this one
Telegram’s own answer, not this register’s. When this register asks Telegram’s API what is similar to this channel, this is the list it returns, in the exact order Telegram returns it — never re-sorted by subscribers or by anything else this register measures. The relationship, and the order, are Telegram’s; we record them and date them, and make no claim of our own about which of these channels actually resemble this one.
@upschighlights · 55,147#1
@csetopper · 175,345#2
@VivekSingh_Economy · 132,275#3
@iaspcspathshala · 188,532#4
@theanonymousupscaspirant · 254,822#5
@mrunalorg · 212,444#6
@TeamKJS · 84,264#7
@ABCD_of_UPSC · 61,657#8
@sunyanotes50 · 192,483#9
@EnlightIAS8_official · 136,195#10
@SOMPGUIDANCE · 93,409#11
@Convert_IAS · 135,525#12
@csepaper2atish · 116,782#13
@upsc_ethics_toppers · 35,993#14
@mehak_jainAIR17 · 59,688#15
@ReadersRepublic9 · 17,231#16
@UnderStandUPSC · 114,370#17
@cse_topper · 30,256#18
@vajiramandraviofficial · 282,092#19
@UPSC_Environment_Ecology_Notes · 36,624#20
@anmolvachan1 · 55,252#21
@karmayogi_ias · 54,849#22
@insightsIAStips · 190,748#23
@upsc_toppers_essay · 35,284#24
@MENTORAIAS · 75,409#25
@PIB_UPSC · 69,827#26
@Indian_Express_CSETopper · 31,515#27
@quotesforupsc · 19,682#28
@vyasaiasofficial · 20,864#29
@csetopper_2027 · 16,946#30
@upscsupersimplified · 41,430#31
@Mindmaps_4_upsc · 44,870#32
@iasecmainsconference · 7,117#33
@upsc_the_hindu_ie_editorial · 51,136#34
@VisionIAS_UPSC · 398,572#35
@Mapping_prelims_mains · 51,892#36
@legendbhaiyaupsc · 51,070#37
@justupscpyq · 33,278#38
@Neil_You · 16,553#39
@CSE_EXAM · 92,138#40
@upscfilescse · 26,440#41
@SleepyClasses · 84,033#42
@rahulsri064 · 12,637#43
@PSIR_Civils_Front · 21,132#44
@iasecprelims · 10,901#45
@UPSC_Ethics_Example · 12,214#46
@UPSCPrelimsWithNeelesh · 40,480#47
@essaykaise1 · 23,234#48
@chandarprabha289upsc · 8,716#49
@darkhorsecse · 35,394#50
@upsc_art_and_culture_notes · 42,692#51
@AgentsofUPSC · 13,709#52
@peeyushupsc · 39,393#53
@upsc_test_series_hub · 62,114#54
@air17swati · 22,682#55
@tjtalkss · 12,560#56
@UPSC_PIB_NEWS · 46,347#57
@iascorridor · 25,910#58
@upsc_planner_ias · 60,843#59
@csp20info · 51,983#60
@target30upsc · 73,651#61
@internal_security_upsc_MAINS · 36,512#62
@HandWritten_Notes1 · 34,445#63
@goalTide · 26,067#64
@Upsc_4_environment · 29,997#65
@cse_resource_backup · 10,803 (as read 13 August 2026)#66
@DelhiUpscSecrets_official · 61,739#67
@tipsforias · 7,612#68
@saurabhPolity · 23,332#69
@UPSCprepIAS · 201,763#70
@upsc_government_scheme · 42,717#71
@upscpdfs25 · 33,987#72
@Upsc_4_economy · 49,623#73
@upsc_facts · 33,977#74
@csetopperessay · 34,185#75
@upsc_science_and_technology · 33,390#76
@upsc_mains_model_answer · 89,225#77
@PLAtforM_IAS · 35,020#78
@freeupscmaterials2026 · 22,250#79
@upsc_society_gs · 32,097#80
@upsc_prelims_2027_28 · 45,819#81
@asksantoshsir · 36,981#82
@UPSC_irmindmaps_di_mains_prelims · 46,166#83
@nikhilhistoryculture · 14,168#84
@AnimeshPradhan_AIR2 · 61,619#85
@upsc_prelims_mcq_pyq_quiz · 62,323#86
@AmazBooks · 2,877#87
@air150rameshverma · 2,771#88
@upsc_geography_mapping_optionals · 148,826#89
@SansadTV_AIRNEWS · 34,497#90
@Official_Captain_Invincible · 10,355#91
Read from Telegram’s recommendation API, most recently 13 August 2026. Telegram holds a list like this for a small and growing share of the register — how this is measured, and why most channel pages show nothing here.
Appears in Telegram’s recommendations for other channels
The reverse of the list above, and a different kind of signal. This does not require this channel to have ever been asked about directly — each row below is a channel we DID ask Telegram about, whose Telegram-generated list happened to include this one. A channel can appear here with an empty list above it, because being named by someone else’s query is independent of having been queried itself.
@UPSC_Environment_Ecology_Notes · 36,624
Telegram ranks this channel #1 of 85 here — alongside 84 others — read 1 September 2026
@upschighlights · 55,147
Telegram ranks this channel #1 of 87 here — alongside 86 others — read 23 August 2026
@upsc_ethics_toppers · 35,993
Telegram ranks this channel #2 of 85 here — alongside 84 others — read 1 September 2026
@UPSC_Previous_Year_Questions · 25,540
Telegram ranks this channel #5 of 71 here — alongside 70 others — read 14 September 2026
@Essay_For_UPSC_Mains · 48,498
Telegram ranks this channel #6 of 74 here — alongside 73 others — read 27 August 2026
@internal_security_upsc_MAINS · 36,512
Telegram ranks this channel #8 of 86 here — alongside 85 others — read 1 September 2026
@VivekSingh_Economy · 132,275
Telegram ranks this channel #9 of 84 here — alongside 83 others — read 13 August 2026
@saurabhPolity · 23,332
Telegram ranks this channel #10 of 80 here — alongside 79 others — read 18 September 2026
@art_and_culture_notes_upsc · 36,813
Telegram ranks this channel #10 of 64 here — alongside 63 others — read 1 September 2026
@upsc_ir_mcq · 40,654
Telegram ranks this channel #12 of 83 here — alongside 82 others — read 29 August 2026
@upsc_facts · 33,977
Telegram ranks this channel #14 of 91 here — alongside 90 others — read 3 September 2026
@HandWritten_Notes1 · 34,445
Telegram ranks this channel #14 of 79 here — alongside 78 others — read 3 September 2026
@EnlightIAS8_official · 136,195
Telegram ranks this channel #15 of 70 here — alongside 69 others — read 13 August 2026
@spectrum_indian_history_quiz_gk · 54,849
Telegram ranks this channel #16 of 67 here — alongside 66 others — read 23 August 2026
@ABCD_of_UPSC · 61,657
Telegram ranks this channel #16 of 79 here — alongside 78 others — read 22 August 2026
@goalTide · 26,067
Telegram ranks this channel #17 of 90 here — alongside 89 others — read 13 September 2026
@UPSC_PIB_NEWS · 46,347
Telegram ranks this channel #17 of 87 here — alongside 86 others — read 27 August 2026
@upsc_the_hindu_ie_editorial · 51,136
Telegram ranks this channel #17 of 88 here — alongside 87 others — read 25 August 2026
@Upsc_ethics_notes · 44,443
Telegram ranks this channel #18 of 68 here — alongside 67 others — read 28 August 2026
@prelims_economy_mcqs · 44,111
Telegram ranks this channel #18 of 78 here — alongside 77 others — read 28 August 2026
@Convert_IAS · 135,525
Telegram ranks this channel #18 of 91 here — alongside 90 others — read 13 August 2026
@CSE_MAINS_PYQ · 44,057
Telegram ranks this channel #20 of 88 here — alongside 87 others — read 28 August 2026
@SOMPGUIDANCE · 93,409
Telegram ranks this channel #20 of 82 here — alongside 81 others — read 16 August 2026
@Mapping_prelims_mains · 51,892
Telegram ranks this channel #21 of 92 here — alongside 91 others — read 24 August 2026
This channel appears in 97 seed channels' Telegram-generated recommendation lists in total, of which the 24 where it ranks highest are shown above. Each is Telegram’s list for THAT channel, not this one — see how this is measured.
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 18 September 2026 — this entry's latest reading, not the date you are reading this.
“VK IAS by Vikas kanukollu (VK)” (@hinduhighlights), 134,319 subscribers as measured 18 September 2026. Telegram Register, tgregister.com/channel/hinduhighlights.
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.