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Observation record / Hacker News

Show HN: Penmentor – Claude marks up your handwritten math like a teacher

First seen 10/20, 23:43 · Last observed 10/21, 03:04 · Source data is current

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Title-based outlineShow HN: Penmentor – Claude marks up your handwritten math like a teacher

Why it mattersA discussion on this source’s current list. Verify details in the original; rank does not establish reliability.

Published 10/20, 23:10

30 minutesRank movement—

Building history

1 hourRank movement—

Building history

24 hoursRank movement—

Building history

Source rank history

21 observations

Building history; no inferred heat score.

173010/20, 23:43 · 17 places10/20, 23:53 · 24 places10/21, 00:03 · 25 places10/21, 00:13 · 26 places10/21, 00:23 · 23 places10/21, 00:33 · 21 places10/21, 00:43 · 23 places10/21, 00:53 · 21 places10/21, 01:03 · 22 places10/21, 01:13 · 21 places10/21, 01:23 · 20 places10/21, 01:33 · 19 places10/21, 01:43 · 20 places10/21, 01:53 · 22 places10/21, 02:03 · 22 places10/21, 02:14 · 25 places10/21, 02:24 · 29 places10/21, 02:34 · 26 places10/21, 02:44 · 27 places10/21, 02:54 · 30 places10/21, 03:04 · 30 places10/20, 23:4310/21, 03:04
Official public API · linked titles only· Author abdullahalharir
View original observation times and ranks
Observation time (Beijing)Source position
10/21, 03:0430
10/21, 02:5430
10/21, 02:4427
10/21, 02:3426
10/21, 02:2429
10/21, 02:1425
10/21, 02:0322
10/21, 01:5322
10/21, 01:4320
10/21, 01:3319
10/21, 01:2320
10/21, 01:1321
10/21, 01:0322
10/21, 00:5321
10/21, 00:4323
10/21, 00:3321
10/21, 00:2323
10/21, 00:1326
10/21, 00:0325
10/20, 23:5324
10/20, 23:4317
Daily aggregate history
日期Best daily positionLast daily positionObservations
2026-10-2017242
2026-10-21193019