Method
Coverage, day by day
What AIDRAN captured from each platform on each day of a release’s week, and whether each day has settled. Posts are counted by the day they were published; capture is counted by the day AIDRAN saw them.
- Release
- 2026-W39 · 21–27 Sep 2026
- As of
- 2 Oct 2026 04:00Zposts captured up to this time
- Coverage computed at
- 2 Oct 2026 19:23Zwhen these counts were computed
- Facts checked
- 2 Oct 2026 19:38:38Z0 posts without facts
- Release status
- Published
- Settling threshold
- 0.5%one for every platform
How to read the charts
The chart in each day
Published: posts published that day and captured by the as-of, on the platform’s own scale. It can still rise.
Published on a day AIDRAN wasn’t collecting yet: captured later, and counted.
Captured: the tick is how many posts AIDRAN saw that day, whenever they were published.
Late: the part of that capture published more than 2 days earlier: a backfill or a backlog.
Status: one per platform per day
active: a collection lane was capturing it.
earlier method: a lane was collecting, under rules other than the current lane’s (days captured live from 7 Mar to 31 May).
backfilled: loaded once from an archive after the fact, not collected live.
episodic: it arrives in batches, not continuously.
not started: AIDRAN hadn’t begun collecting it yet.
no lane: collection began and then stopped.
Flags: named rules over the counts
The day wasn’t fully observed: a platform’s first day of capture, or its last before capture stopped.
An active day that captured fewer than half its usual daily posts (the median of the previous 7 capture days).
More than half the posts captured that day were published more than 2 days earlier.
Under the threshold of the day’s posts still expected (arXiv: by batch). “Not applicable” where the platform wasn’t actively collected.
How to read the charts
The chart in each day
Published: posts published that day and captured by the as-of, on the platform’s own scale. It can still rise.
Published on a day AIDRAN wasn’t collecting yet: captured later, and counted.
Captured: the tick is how many posts AIDRAN saw that day, whenever they were published.
Late: the part of that capture published more than 2 days earlier: a backfill or a backlog.
Status: one per platform per day
active: a collection lane was capturing it.
earlier method: a lane was collecting, under rules other than the current lane’s (days captured live from 7 Mar to 31 May).
backfilled: loaded once from an archive after the fact, not collected live.
episodic: it arrives in batches, not continuously.
not started: AIDRAN hadn’t begun collecting it yet.
no lane: collection began and then stopped.
Flags: named rules over the counts
The day wasn’t fully observed: a platform’s first day of capture, or its last before capture stopped.
An active day that captured fewer than half its usual daily posts (the median of the previous 7 capture days).
More than half the posts captured that day were published more than 2 days earlier.
Under the threshold of the day’s posts still expected (arXiv: by batch). “Not applicable” where the platform wasn’t actively collected.
Status of each day
- active
- earlier method
- backfilled
- episodic
- not started
- no lane
Published and captured, day by day
Each platform’s week as two series: what was published each day, and what AIDRAN captured. The gap between them is late capture: the first days of collection caught up on earlier posts.
7 platforms × 7 days
active35
episodic7
no lane7
Days flagged
partial1
low capture2
late heavy6
Settling
days it applies to35
settled so far34
Platform-days in 2026-W39, as stored at 2 Oct 2026 04:00Z. Counts of days, not posts.
7 platforms × 7 days
active35
episodic7
no lane7
Days flagged
partial1
low capture2
late heavy6
Settling
days it applies to35
settled so far34
Platform-days in 2026-W39, as stored at 2 Oct 2026 04:00Z. Counts of days, not posts.
Reddit7 active
top of scale 31,180,423
Bluesky7 active
top of scale 21,819
YouTube7 active
top of scale 1,328
Hacker News7 active
top of scale 27,157
arXiv7 active
top of scale 16,154
Google News7 no lane
top of scale 1
Exa7 episodic
top of scale 144
Each platform’s week in 2026-W39, 21–27 Sep 2026, as of 2 Oct 2026 04:00Z (computed 2 Oct 2026 19:23Z). Each row is a pair of series: posts published each day (bars) and posts captured each day (ticks), with the late part of each capture hatched; published. Each platform is drawn on its own scale, topped by its largest daily count, so rows are never compared by height. Nothing is added across platforms.
The 40 stored weeks
Each stored week side by side, four at a time (three on a phone), with Earlier and Later. A dashed mark sits where the way weeks were captured changes.
Reddittop 179,534
W33287,924
7 backfilled
W34242,009
7 backfilled
W35244,534
7 backfilled
W36273,071
7 backfilled
Blueskytop 46,963
W33
7 not started
W34
7 not started
W35
7 not started
W36
7 not started
YouTubetop 1,414
W33
7 not started
W34
7 not started
W35
7 not started
W36
7 not started
Hacker Newstop 281
W33340
7 backfilled
W34281
7 backfilled
W35321
7 backfilled
W36299
7 backfilled
arXivtop 695
W33422
7 backfilled
W34401
7 backfilled
W35413
7 backfilled
W36426
7 backfilled
Google Newstop 410
W33
7 not started
W34
7 not started
W35
7 not started
W36
7 not started
Exatop 1,547
W33
7 not started
W34
7 not started
W35
7 not started
W36
7 not started
Posts published each day on each platform in every stored week, W01 (29 Dec – 4 Jan), W02 (5–11 Jan), W03 (12–18 Jan), W04 (19–25 Jan), W05 (26 Jan – 1 Feb), W06 (2–8 Feb), W07 (9–15 Feb), W08 (16–22 Feb), W09 (23 Feb – 1 Mar), W10 (2–8 Mar), W11 (9–15 Mar), W12 (16–22 Mar), W13 (23–29 Mar), W14 (30 Mar – 5 Apr), W15 (6–12 Apr), W16 (13–19 Apr), W17 (20–26 Apr), W18 (27 Apr – 3 May), W19 (4–10 May), W20 (11–17 May), W21 (18–24 May), W22 (25–31 May), W23 (1–7 Jun), W24 (8–14 Jun), W25 (15–21 Jun), W26 (22–28 Jun), W27 (29 Jun – 5 Jul), W28 (6–12 Jul), W29 (13–19 Jul), W30 (20–26 Jul), W31 (27 Jul – 2 Aug), W32 (3–9 Aug), W33 (10–16 Aug), W34 (17–23 Aug), W35 (24–30 Aug), W36 (31 Aug – 6 Sep), W37 (7–13 Sep), W38 (14–20 Sep), W39 (21–27 Sep) and W40 (28 Sep – 4 Oct), from each release’s stored coverage, as of 8 Oct 2026 12:00Z; each week published; the weekly totals are the stored platform totals. Each platform has one scale, from all its stored weeks, across the eras. March era weeks were rebuilt from archives, with live capture from 7 Mar to 31 May, Archive backfill weeks were backfilled from archives (Reddit, Hacker News and arXiv only) and September era weeks were captured live from 16 Sep and filled in from archives. The dashed mark is where that changes, so a bar’s height can change with how its week was captured.
2026, day by day
Every platform and day of the year: posts published each day, with each day’s status, each platform on one scale. Dashed marks show where capture changes.
- active
- earlier method
- backfilled
- episodic
- not started
- no lane
- a flag (partial, low capture, late heavy)
- capture changes: live capture begins or ends
- today, 22 Oct
- active
- earlier method
- backfilled
- episodic
- not started
- no lane
- a flag (partial, low capture, late heavy)
- capture changes: live capture begins or ends
- today, 22 Oct
Reddittop 179,534
Blueskytop 46,963
YouTubetop 1,414
Hacker Newstop 281
arXivtop 695
Google Newstop 410
Exatop 1,686
Month by month, newest first
October 202622 of 31 days so far
Reddit22 active, 1 flagged
Bluesky22 active, 1 flagged
YouTube22 active, 1 flagged
Hacker News22 active, 1 flagged
arXiv22 active, 11 flagged
Google News22 no lane, 1 flagged
Exa22 no lane, 2 flagged
September 202630 days
August 202631 days
July 202631 days
June 202630 days
May 202631 days
April 202630 days
March 202631 days
February 202628 days
January 202631 days
December 20253 days
Posts published each day on each platform, 29 Dec 2025 to 3 Jan 2027, by UTC day, as computed at 22 Oct 2026 19:23Z. Each platform is drawn on its own scale for the year, across the eras; the tops are printed beside each platform, so bars are never compared across platforms, and nothing is added across platforms. The dashed marks are where capture changes (captured live 7 Mar – 31 May and from 16 Sep; any other day held was loaded from an archive), so a bar’s height can change with how its day was captured. Statuses as stored: active, earlier method, backfilled, episodic, not started and no lane. Nothing was captured live between 31 May and 16 Sep; posts published then and loaded later show as their status says.
The table in words
One summary per platform for the week shown, for reading without the charts.
Active 21–27 Sep. Flagged late heavy on 24–25 Sep. Settling applies to 21–27 Sep, by curve; all 7 have settled.
Bluesky
Active 21–27 Sep. Settling applies to 21–27 Sep, by curve; all 7 have settled.
YouTube
Active 21–27 Sep. Settling applies to 21–27 Sep, by curve; all 7 have settled.
Hacker News
Active 21–27 Sep. Flagged late heavy on 24–25 Sep. Settling applies to 21–27 Sep, by curve; all 7 have settled.
arXiv
Active 21–27 Sep. Flagged late heavy on 21 Sep and 24 Sep; low capture on 26–27 Sep. Settling applies to 21–27 Sep, by batch; 6 of 7 have settled.
Google News
No lane 21–27 Sep. Settling doesn’t apply: the lane has since stopped, so its days are final but incomplete.
Exa
Episodic 21–27 Sep. Flagged partial on 21 Sep. Settling doesn’t apply: Exa arrives in batches.