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BA | Stamp

Chrome extension by Aletheia Tech Ltd · Productivity · Tools

  • Established publisher
  • Trader

A Chrome extension in Productivity · Tools with 13 users, barely installed. Audience over the last 30 days: -2.

Specific sites only: 1 match pattern.

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
13
Rating
5.0 (3 ratings)
Users, last 30 days
-2
Rating, last 30 days
Steady over 30 days
Version
0.4.0
Updated in the store
2026-10-14
Published
2026-05-15
Manifest
V3
Browser access
5 permissions, 1 site pattern

How it has moved

Users
-2 since 14.10
13-16 · 14 readings
2026-10-14: released 0.4.02026-11-04: gained the good publisher record badge
  1. 2026-10-1816
  2. 2026-10-1915
  3. 2026-10-2014
  4. 2026-10-2115
  5. 2026-10-2214
  6. 2026-10-2415
  7. 2026-10-2514
  8. 2026-10-3016
  9. 2026-11-0116
  10. 2026-11-0415gained the good publisher record badge
  11. 2026-11-0715
  12. 2026-11-0814
  13. 2026-11-1013
  14. 2026-11-1313
Rating
unchanged since 14.10
reviewsrating 5.00 · 14 readings
2026-10-14: released 0.4.02026-11-04: gained the good publisher record badge
  1. 2026-10-18reviews3rating5.00
  2. 2026-10-19reviews3rating5.00
  3. 2026-10-20reviews3rating5.00
  4. 2026-10-21reviews3rating5.00
  5. 2026-10-22reviews3rating5.00
  6. 2026-10-24reviews3rating5.00
  7. 2026-10-25reviews3rating5.00
  8. 2026-10-30reviews3rating5.00
  9. 2026-11-01reviews3rating5.00
  10. 2026-11-04reviews3rating5.00gained the good publisher record badge
  11. 2026-11-07reviews3rating5.00
  12. 2026-11-08reviews3rating5.00
  13. 2026-11-10reviews3rating5.00
  14. 2026-11-13reviews3rating5.00
Users
+1 since 31.08
11-16 · 30 readings
2026-10-14: released 0.4.02026-11-04: gained the good publisher record badge
  1. 2026-08-3112
  2. 2026-09-0313
  3. 2026-09-0412
  4. 2026-09-0613
  5. 2026-09-0711
  6. 2026-09-0812
  7. 2026-09-1315
  8. 2026-09-1516
  9. 2026-09-1615
  10. 2026-09-2016
  11. 2026-09-2115
  12. 2026-09-2616
  13. 2026-09-2813
  14. 2026-10-0415
  15. 2026-10-0916
  16. 2026-10-1015
  17. 2026-10-1816
  18. 2026-10-1915
  19. 2026-10-2014
  20. 2026-10-2115
  21. 2026-10-2214
  22. 2026-10-2415
  23. 2026-10-2514
  24. 2026-10-3016
  25. 2026-11-0116
  26. 2026-11-0415gained the good publisher record badge
  27. 2026-11-0715
  28. 2026-11-0814
  29. 2026-11-1013
  30. 2026-11-1313
Rating
unchanged since 31.08
reviewsrating 5.00 · 30 readings
2026-10-14: released 0.4.02026-11-04: gained the good publisher record badge
  1. 2026-08-31reviews3rating5.00
  2. 2026-09-03reviews3rating5.00
  3. 2026-09-04reviews3rating5.00
  4. 2026-09-06reviews3rating5.00
  5. 2026-09-07reviews3rating5.00
  6. 2026-09-08reviews3rating5.00
  7. 2026-09-13reviews3rating5.00
  8. 2026-09-15reviews3rating5.00
  9. 2026-09-16reviews3rating5.00
  10. 2026-09-20reviews3rating5.00
  11. 2026-09-21reviews3rating5.00
  12. 2026-09-26reviews3rating5.00
  13. 2026-09-28reviews3rating5.00
  14. 2026-10-04reviews3rating5.00
  15. 2026-10-09reviews3rating5.00
  16. 2026-10-10reviews3rating5.00
  17. 2026-10-18reviews3rating5.00
  18. 2026-10-19reviews3rating5.00
  19. 2026-10-20reviews3rating5.00
  20. 2026-10-21reviews3rating5.00
  21. 2026-10-22reviews3rating5.00
  22. 2026-10-24reviews3rating5.00
  23. 2026-10-25reviews3rating5.00
  24. 2026-10-30reviews3rating5.00
  25. 2026-11-01reviews3rating5.00
  26. 2026-11-04reviews3rating5.00gained the good publisher record badge
  27. 2026-11-07reviews3rating5.00
  28. 2026-11-08reviews3rating5.00
  29. 2026-11-10reviews3rating5.00
  30. 2026-11-13reviews3rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 1 match pattern.

  • https://bastamp.com/*
  • Attach to pages the way developer tools do debugger
  • Manage your downloads downloads
  • Act on the current tab, but only after you click it activeTab
Show the remaining 2

The full permission history for this extension

Version history

  1. Version 0.4.0

What changed recently

  1. Gained the Established publisher badge
  2. Package size changed
  3. Store description rewritten (82 → 92 characters)
Show the remaining 1
  1. Released version 0.4.0 (was 0.3.2)

The publisher

Aletheia Tech Ltd publishes 2 listings we track, 17 users between them. Listed website: bastamp.com.

  1. BA | Stamp for Gmail Aletheia Tech Ltd · Productivity · Tools · published 2026-10-14 4 users

Like this one

Listings the catalog judges closest in what they say they do.

  1. BA | Stamp for Gmail Describes nearly the same job, smaller audience 4 users
  2. PostStamper Describes nearly the same job, smaller audience 3 users (last published figure)
  3. GetProofAnchor Describes nearly the same job, smaller audience 27 users ★ 5.0
  4. BitProof — Archive & Timestamp Web Pages Describes nearly the same job, smaller audience 5 users
  5. OTRUST - Blockchain Timestamp Describes nearly the same job, smaller audience 3 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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Users and rating on Ext Ops Panel

Markdown

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HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-10. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built