Every count here is the whole corpus. The list pages show less — they are bounded by a rolling window of the newest 20,000 papers plus everything that has earned attention.
papers 2,165,899 ███████████▌ with attention 640,560 ███▍ authors 3,775,253 ████████████████████ backlinks 541,863 ██▉ citations 2,154,850 ███████████▍ analyses 225 ▏ journals 15,486 ▏ mirror accounts 260 ▏ queued discussions 225,999 █▎
last 24 hours: 5,938 papers, 105,429 backlinks
Of 2,165,899 papers, how many carry each field. A preprint has an arxiv id and no doi; a doi is what every enrichment stage is keyed on, and an issn is what journal discovery runs on.
title 2,165,899 ████████████████████ abstract 1,994,288 ██████████████████▍ publication date 2,165,827 ████████████████████ doi 2,133,771 ███████████████████▊ arxiv id 1,612,006 ██████████████▉ issn 885,853 ████████▏
How far each stage has got through the same 2,165,899 papers. Every column behind these stays null until its stage reaches the row, so a short bar is a stage that is behind — and an empty one is a stage that has never run at all, which is not the same thing and used to be invisible.
crossref asked 201,934 █▉ openalex asked 898,271 ████████▎ semantic scholar asked 250,378 ██▎ wikipedia asked 70,753 ▋ europe pmc asked 35,232 ▍ crawled for links 2,166 ▏ embedded 1,988,801 ██████████████████▍
europepmc 298,317 ████████████████████ bsky 225,098 ███████████████▏ hn 11,847 ▊ wikipedia 3,169 ▎ stackexchange 2,444 ▏ mastodon 1,554 ▏ lemmy 1,528 ▏ lobsters 794 ▏
2020s 1,331,732 ████████████████████ 2010s 567,061 ████████▌ 2000s 194,036 ██▉ 1990s 57,185 ▉ 1980s 9,235 ▏ 1970s 5,169 ▏ 1960s 2,421 ▏ 1950s 1,206 ▏ 1940s 506 ▏ 1930s 489 ▏ 1920s 273 ▏ 1910s 156 ▏ 1900s 125 ▏ pre-1900 273 ▏
2026 68,465 ███▍ 2025 409,950 ████████████████████ 2024 275,588 █████████████▌ 2023 192,281 █████████▍ 2022 140,670 ██████▉ 2021 126,154 ██████▏ 2020 118,624 █████▊ 2019 95,960 ████▋ 2018 81,741 ████ 2017 70,846 ███▌ 2016 61,087 ███ 2015 58,150 ██▉ 2014 49,321 ██▍ 2013 45,605 ██▎ 2012 38,529 █▉ 2011 36,149 █▊ 2010 29,673 █▌ 2009 26,659 █▎ 2008 23,866 █▏ 2007 22,300 █▏ 2006 19,688 █ 2005 19,403 █ 2004 19,869 █ 2003 18,085 ▉ 2002 15,933 ▊
Computer Science 296,367 ████████████████████ Physics and Astronomy 202,953 █████████████▊ Engineering 172,726 ███████████▋ Mathematics 154,530 ██████████▍ Social Sciences 98,443 ██████▋ Medicine 94,808 ██████▍ Biochemistry, Genetics and Molecular Biology 73,863 █████ Environmental Science 54,914 ███▊ Psychology 42,733 ██▉ Agricultural and Biological Sciences 40,357 ██▊ Materials Science 38,364 ██▋ Earth and Planetary Sciences 35,014 ██▍ Decision Sciences 33,670 ██▎ Economics, Econometrics and Finance 32,098 ██▏ Neuroscience 31,494 ██▏ Arts and Humanities 26,948 █▉ Business, Management and Accounting 20,475 █▍ Chemistry 18,717 █▎ Health Professions 18,555 █▎ Immunology and Microbiology 10,149 ▋ Energy 5,420 ▍ Chemical Engineering 3,699 ▎ Nursing 3,464 ▎ Pharmacology, Toxicology and Pharmaceutics 2,666 ▏ Veterinary 2,009 ▏ Dentistry 1,742 ▏
Two vocabularies at once — arxiv category codes from the harvest and openalex topic phrases from enrichment, with nothing mapping between them.
FOS: Computer and information sciences 598,038 ████████████████████ FOS: Mathematics 418,246 ██████████████ FOS: Physical sciences 409,470 █████████████▊ Machine Learning (cs.LG) 178,275 ██████ Computer Vision and Pattern Recognition (cs.CV) 130,105 ████▍ Artificial Intelligence (cs.AI) 113,145 ███▊ FOS: Electrical engineering 87,060 ██▉ electronic engineering 87,060 ██▉ information engineering 87,060 ██▉ Computation and Language (cs.CL) 73,150 ██▌ Machine Learning (stat.ML) 54,157 █▊ Quantum Physics (quant-ph) 52,416 █▊ Combinatorics (math.CO) 51,605 █▊ Analysis of PDEs (math.AP) 47,238 █▋ High Energy Physics - Phenomenology (hep-ph) 45,713 █▌ Optimization and Control (math.OC) 41,401 █▍ Probability (math.PR) 40,793 █▍ High Energy Physics - Theory (hep-th) 38,782 █▎ Algebraic Geometry (math.AG) 37,664 █▎ Information Theory (cs.IT) 35,582 █▎ Mathematical Physics (math-ph) 34,349 █▏ Robotics (cs.RO) 33,722 █▏ Materials Science (cond-mat.mtrl-sci) 31,597 █ Number Theory (math.NT) 31,458 █ Cryptography and Security (cs.CR) 30,742 █ Numerical Analysis (math.NA) 30,497 █ Systems and Control (eess.SY) 29,423 █ FOS: Biological sciences 28,708 █ Differential Geometry (math.DG) 28,023 ▉ General Relativity and Quantum Cosmology (gr-qc) 26,998 ▉ Dynamical Systems (math.DS) 25,724 ▉ Signal Processing (eess.SP) 25,435 ▉ Topic Modeling 25,139 ▉ Methodology (stat.ME) 23,545 ▊ Functional Analysis (math.FA) 23,231 ▊ FOS: Economics and business 21,696 ▊ Data Structures and Algorithms (cs.DS) 21,036 ▊ Image and Video Processing (eess.IV) 20,201 ▋ Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 20,051 ▋ Astrophysics (astro-ph) 19,253 ▋
A sweep hit usually names a paper we do not hold, so it queues until a resolver fetches it by the id the link named. 225,999 discussions name 186,855 distinct papers, of which 186,200 are worth an api call — the rest have hit the retry cap or are backed by nothing but mirror accounts.
by id — the two resolvers get separate budgets, because arxiv wants three seconds between batches and openalex answers fifty in a hundred milliseconds
doi 162,621 ████████████████████ arxiv 65,378 ████████
by attempts — three and a key leaves the queue, so a bar on the right is the part of it that is dying
0 tries 226,458 ████████████████████ 1 try 385 ▏ 2 tries 25 ▏ 3 tries 1,131 ▏
by the source that queued it
bsky 108,775 ████████████████████ wikipedia 106,710 ███████████████████▋ hn 7,944 █▌ mastodon 2,864 ▌ stackexchange 1,371 ▎ lemmy 200 ▏ lobsters 135 ▏
claims 18 ████████████████████ classification 18 ████████████████████ funding 18 ████████████████████ links 18 ████████████████████ one_liner 18 ████████████████████ open_questions 18 ████████████████████ outline 18 ████████████████████ summary 18 ████████████████████ audience 10 ███████████▏ figure 10 ███████████▏ glossary 10 ███████████▏ argument 8 ████████▉ assumptions 8 ████████▉ eli5 8 ████████▉ tldr 8 ████████▉ key_equations 5 █████▌ proof_sketch 5 █████▌ benchmark_tables 3 ███▍ limitations 3 ███▍ methods_card 3 ███▍
225 in total; most recent 2026/08/01.
arxiv harvested through 2026/08/01
arxiv-full harvested through 2005/09/30
drain sweep at , updated 2026/07/31
openalex-field-11 sweep at IlsxMDAuMCwgNTE0LCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzMxMTI5MjA3NjQnXSI=, updated 2026/07/31
openalex-field-12 sweep at IlsxMDAuMCwgMTc3LCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzQ0MDQ1NTM5NDEnXSI=, updated 2026/07/31
openalex-field-13 sweep at IlsxMDAuMCwgMTIwMiwgJ2h0dHBzOi8vb3BlbmFsZXgub3JnL1c0Mjg5ODM2MTU1J10i, updated 2026/07/31
openalex-field-14 sweep at IlsxMDAuMCwgNDM2LCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzMwOTM0NzQyMjgnXSI=, updated 2026/07/31
openalex-field-15 sweep at IlsxMDAuMCwgMjM3LCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzMwMDQzMTgxNzgnXSI=, updated 2026/07/31
openalex-field-16 sweep at IlsxMDAuMCwgMzg3LCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzMwOTE5NzMyNjInXSI=, updated 2026/07/31
openalex-field-17 sweep at IlsxMDAuMCwgMTY4NCwgJ2h0dHBzOi8vb3BlbmFsZXgub3JnL1czMDIyNjQzNTkzJ10i, updated 2026/07/31
openalex-field-18 sweep at IlsxMDAuMCwgNDU0LCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzMwMDMzODcxMjcnXSI=, updated 2026/07/31
openalex-field-19 sweep at IlsxMDAuMCwgMzc0LCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzMxNTk2OTI0MDEnXSI=, updated 2026/07/31
openalex-field-20 sweep at IlsxMDAuMCwgNjEzLCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzI5OTk3NTg5ODInXSI=, updated 2026/07/31
openalex-field-21 sweep at IlsxMDAuMCwgNjgyLCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzMxNjY0MTc1MjAnXSI=, updated 2026/07/31
openalex-field-22 sweep at IlsxMDAuMCwgMTE1NSwgJ2h0dHBzOi8vb3BlbmFsZXgub3JnL1czMDQwNzIxNTU2J10i, updated 2026/07/31
openalex-field-23 sweep at IlsxMDAuMCwgMTA5MSwgJ2h0dHBzOi8vb3BlbmFsZXgub3JnL1czMDg4NzcxNjAzJ10i, updated 2026/07/31
openalex-field-24 sweep at IlsxMDAuMCwgNjE5LCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzQzNjI2MDIwMjcnXSI=, updated 2026/07/31
openalex-field-25 sweep at IlsxMDAuMCwgODMxLCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzMxNTM0ODYwNjMnXSI=, updated 2026/07/31
openalex-field-26 sweep at IlsxMDAuMCwgNjM1LCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzMwODI1OTk0MjQnXSI=, updated 2026/07/31
openalex-field-27 sweep at IlsxMDAuMCwgMzE2NCwgJ2h0dHBzOi8vb3BlbmFsZXgub3JnL1c0MzI0MzA5Mjc3J10i, updated 2026/07/31
openalex-field-28 sweep at IlsxMDAuMCwgNTgxLCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzMwNDgzMDM5NDYnXSI=, updated 2026/07/31
openalex-field-29 sweep at IlsxMDAuMCwgMjkzLCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzMxNTk4NzU1NDcnXSI=, updated 2026/07/31
openalex-field-30 sweep at IlsxMDAuMCwgMjUwLCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzMwMTA1NjUyOTAnXSI=, updated 2026/07/31
openalex-field-31 sweep at IlsxMDAuMCwgNjQ1LCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzExMzgzNjM2OSddIg==, updated 2026/07/31
openalex-field-32 sweep at IlsxMDAuMCwgOTYzLCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzYxODA5Mzk5OSddIg==, updated 2026/07/31
openalex-field-33 sweep at IlsxMDAuMCwgMTA0MywgJ2h0dHBzOi8vb3BlbmFsZXgub3JnL1czMTU1OTc2MzQ5J10i, updated 2026/07/31
openalex-field-34 sweep at IlsxMDAuMCwgOTQsICdodHRwczovL29wZW5hbGV4Lm9yZy9XNDIyNTg1NDYxMCddIg==, updated 2026/07/31
openalex-field-35 sweep at IlsxMDAuMCwgMjI5LCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzMwMjE1MjA2ODMnXSI=, updated 2026/07/31
openalex-field-36 sweep at IlsxMDAuMCwgNTE2LCAnaHR0cHM6Ly9vcGVuYWxleC5vcmcvVzQyMDA1MzU3OTEnXSI=, updated 2026/07/31
wikipedia sweep at 816003867, updated 2026/08/02
15,486 journals, 11,669 never polled, the rest polled through 2026/07/26–2026/08/01
counted 2026/08/02, refreshed hourly