Sources & Licences

Every dataset this site publishes, with its origin and terms. Record counts are computed from the committed data at build time rather than written by hand, so this page cannot drift from what the site actually ships.

Provenance Summary

Verified Upstream Datasets
50
Total Indexed Records
13,087
Audit Snapshot
2026-10-26

IAU Designated Constellations

Records
88 the full IAU list, with area and brightest star
Licence
Public domain — IAU constellation data (boundaries fixed 1930)
Captured
2026-10-16

The 14 opening entries predate this completion and are kept as first written; the remaining 74 come from scripts/enrich_constellations_iau.js. Viewing months follow from mid right ascension by a rule that reproduces the original entries exactly.

HGNC — HUGO Gene Nomenclature Committee

Records
78 microRNA pages annotated with HGNC symbol, id, miRBase accession, location and RefSeq
Covers
/human/gene microRNA pages
Licence
Freely usable — HGNC data
Captured
2026-10-16

Join keys and every identifier were fetched live from the HGNC REST API by scripts/annotate_mirna_hgnc.js; two queue slugs (mir434, mir450c) match no current HGNC locus and stay unannotated in scripts/mirna_unresolved.json rather than guessed.

IANA Service Name and Transport Protocol Port Number Registry

Records
6,031 well-known port assignments
Covers
/port
Licence
Freely usable — IANA protocol registry
Captured
2026-09-19

Chosen over the nmap-services file this section previously read at runtime, which is copyright Insecure.Com LLC under the Nmap Public Source License — a copyleft licence whose terms would extend to work built on it. IANA is the authoritative upstream and additionally carries the official description and defining RFC.

web-features (W3C WebDX Community Group)

Records
69 APIs with Baseline and browser-support data
Covers
/web_apis
Licence
CC0-1.0
Captured
2026-08-18

8 pages are deliberately left without data rather than mapped to a near-neighbour feature.

PubChem Periodic Table of Elements

Records
118 elements, joined on symbol
Licence
Public domain (US National Library of Medicine)

Atomic mass, electron configuration, electronegativity, melting and boiling point, density, oxidation states and discovery year.

Laboratory Instrument References (Wikipedia)

Records
20 instrument entries that link one Wikipedia article under Sources
Licence
Citations only; reference text is not reproduced
Captured
2026-10-21

Cited entries: plate reader, flow cytometry, confocal microscopy, cryo-electron microscopy, thermal cycler, surface plasmon resonance, liquid handling robot, and scintillation counter. The older equipment entries carry no per-entry citation yet.

Particle Data Group — Review of Particle Physics

Records
38 particles joined on hand-verified PDG identifiers
Licence
CC BY 4.0

PDG 2026 edition. Cite: F. Takahashi et al. (Particle Data Group), Int. J. Mod. Phys. A 41, 2630011 (2026). Masses, widths, lifetimes and branching fractions keep the precision PDG quotes. The gluon and the three flavour neutrinos carry identity only — their summaries publish no parseable single-particle values.

NIST — CODATA 2022 Fundamental Physical Constants

Records
57 constants with value, uncertainty and exactness status
Licence
Public domain (US National Institute of Standards and Technology)

Joined on the exact CODATA quantity name. Exactness is cross-checked both ways: an entry marked Exact must match an "(exact)" table row, and a Measured entry must carry an uncertainty.

Nobel Prize API

Records
13 laureate records joined on exact name
Licence
CC0

Eight physicists in the roster predate the prize or famously never received it; their absence is recorded in scripts/nobel_unresolved.json, not guessed around.

Nobel Prize API (economics laureates)

Records
7 laureate years and citations joined on exact name
Licence
CC0
Captured
2026-10-20

Years verified against the published prize list: Samuelson 1970, Arrow 1972, Hayek 1974, Friedman 1976, Sen 1998, Kahneman 2002, Ostrom 2009. Non-laureates in the roster (Smith, Ricardo, Mill, Marx, Marshall, Fisher, Keynes, Schumpeter, Piketty) predate or fall outside the prize.

IMF & World Bank open data (indicator documentation)

Records
14 indicator entries with publisher, cadence, and classification cross-checked against publisher docs
Licence
Open data; definitions summarized, series not redistributed
Captured
2026-10-20

Indicator definitions and release cadences checked against IMF BPM6/WEO, World Bank PIP and ICP documentation, U.S. BLS, the Conference Board, ISM, and The Economist. The June 2025 poverty-line update ($3.00/day at 2021 PPP) postdates most textbooks. Each indicator entry also links its own reference under Sources.

Economics concept references (Econlib, Stanford Encyclopedia of Philosophy, Wikipedia)

Records
16 concept entries, each linking one reference page under Sources
Licence
Citations only; reference text is not reproduced
Captured
2026-10-20

Each entry cites an Econlib Concise Encyclopedia of Economics article where one exists, the Stanford Encyclopedia of Philosophy for game theory and the prisoner's dilemma, and otherwise the English Wikipedia article. Origins and attributions were checked against those pages (Cournot 1838 and Jenkin 1870 drew demand and supply curves before Marshall popularized the diagram in 1890).

Schools of economic thought references (Econlib, Wikipedia)

Records
12 school entries, each linking one reference page under Sources
Licence
Citations only; reference text is not reproduced
Captured
2026-10-20

Each school cites its Econlib Concise Encyclopedia of Economics article (mercantilism, neoclassical, Austrian, Keynesian, monetarism, new classical, behavioral) or, where Econlib has none, the English Wikipedia article (physiocracy, classical, Marxian, institutional, Chicago).

Botany references (Wikipedia)

Records
82 entries, each linking one Wikipedia article under Sources
Covers
/botany
Licence
Citations only; text is not reproduced
Captured
2026-10-22

Species and ecosystem titles hand-mapped where display names diverge from article titles; all URLs verified 200.

Music references (Wikipedia)

Records
84 entries, each linking one Wikipedia article under Sources
Covers
/music
Licence
Citations only; text is not reproduced
Captured
2026-10-22

Includes disambiguated titles (A440 (pitch standard), Mode (music)); all URLs verified 200.

Materials references (Wikipedia)

Records
173 entries, each linking one Wikipedia article under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-22

Trade designations mapped to their alloy and material articles (316 stainless steel, 7075 aluminium alloy, Ti-6Al-4V); URLs verified 200.

Cybersecurity references (Wikipedia, MITRE CWE, IETF, NIST, IACR, Snyk)

Records
113 entries, each linking one reference under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-22
Upstream Origin
https://cwe.mitre.org/

Wikipedia articles for most entries; primary sources where they exist — CWE-798, CWE-16, CWE-1336, CWE-415 and CWE-319, RFC 8554 (LMS) and RFC 8391 (XMSS), NIST IR 8545 (HQC, BIKE), IACR ePrint 2022/214 (Rainbow), and Snyk research for Zip Slip. All URLs verified 200.

Linguistics references (Wikipedia)

Records
136 entries, each linking one Wikipedia article under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-22

Writing systems mapped to their script articles (Gurmukhi, Thaana, NKo); phonetics to term articles. All URLs verified 200.

History references (Wikipedia)

Records
207 entries, each linking one Wikipedia article under Sources
Covers
/history
Licence
Citations only; text is not reproduced
Captured
2026-10-22

Events mapped to their canonical articles (Apollo 11, History of the Internet). All URLs verified 200.

Literature references (Wikipedia)

Records
204 entries, each linking one Wikipedia article under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-26

Plays, novels, poetry, literary forms, movements, and authors citing their canonical Wikipedia reference articles. All URLs verified 200.

Astronomy references (Wikipedia)

Records
156 entries, each linking one Wikipedia article under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-22

Galaxies mapped to their Messier/NGC articles; joins the existing IAU constellations record. All URLs verified 200.

Chemistry references (Wikipedia)

Records
219 entries, each linking one Wikipedia article under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-22

Elements, reactions, catalysts, polymers, and equipment mapped to canonical articles (Diels-Alder reaction, Ziegler-Natta catalyst, Wilkinson's catalyst, Grubbs catalyst, PTFE). Joins the existing PubChem elements record. All URLs verified 200.

Geology and chronology references (Wikipedia)

Records
29 entries, each linking one Wikipedia article under Sources
Covers
/geology
Licence
Citations only; text is not reproduced
Captured
2026-10-26

Minerals, rocks, tectonic formations, and standard stratigraphic as well as alternative chronology models (Younger Dryas impact, catastrophism, Earth crustal displacement, Tartaria, Fomenko's New Chronology, Phantom Time, and Hyperborea/Lemuria/Mu) citing their canonical Wikipedia articles. All URLs verified 200.

Engineering and propulsion references (Wikipedia)

Records
21 entries, each linking one Wikipedia article under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-26

Thermodynamic power cycles, mechanical/thermal/control components, structural systems, and aerospace/space/hydraulic propulsion entries citing their canonical Wikipedia articles. All URLs verified 200.

Physics references (PDG summaries, Wikipedia)

Records
291 entries, each linking one reference under Sources
Covers
/physics
Licence
Citations only; text is not reproduced
Captured
2026-10-22
Upstream Origin
https://pdg.lbl.gov/

All 38 PDG-joined particles cite their per-particle PDG API summary page (verified 200 per id); constants, quantum, solid_state, classical, theorems, experiments, and the two unjoined particles cite Wikipedia articles. Joins the existing PDG, CODATA, and Nobel records.

Geography references (Wikipedia)

Records
33 entries, each linking one Wikipedia article under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-22

Per-entry article URLs verified HTTP 200 before injection.

Mathematics references (Wikipedia)

Records
47 entries, each linking one Wikipedia article under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-22

Titles sentence-cased to Wikipedia conventions; every URL verified 200.

Matrix multiplication & tensor algorithm references

Records
12 entries, each citing its paper or reference page under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-26

Sources opened and fact-checked 2026-10-26: Nature s41586-022-05172-4 (AlphaTensor), arXiv 2506.13131 (AlphaEvolve), 2402.14396 (AlphaTensor-Quantum), 2511.09951 (T-count reusability), 2405.20748 (OpenTensor), 2606.13408 (FMM catalog), plus Wikipedia pages for the classical algorithms. Every claim on an entry was checked against its own cited page; unsupported figures were left out.

Quantum sensing & metrology references

Records
18 entries, each citing its paper or reference page under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-26

Sources opened and fact-checked 2026-10-26: PRL 67, 181 (Kasevich–Chu 1991), PRL 97, 010402 (Canuel 2006 six-axis sensor), RMP 81, 1051 (Cronin 2009 review), Science Advances 4, eaau7948 (Savoie 2018 interleaved interferometry), arXiv 1603.03246 (Barrett 2016) and 1203.2847 (neutrino communication), plus Wikipedia pages for clocks, limits, and concepts. The AIP page for the Geiger 2020 review (10.1116/5.0009093) blocks automated access, so its topics were sourced from open pages.

Atomic & optical physics references

Records
40 entries, each citing a Wikipedia article under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-26

All 40 sources opened and fact-checked 2026-10-26 (Wikipedia pages for cooling, trapping, atom optics, spectroscopy, and quantum optics; the Cronin RMP 81, 1051 review for atom diffraction). Course context: MIT OCW 8.422 (opens 200). The Metcalf & van der Straten review (Rev. Mod. Phys. 75, 1431) 404s on APS and via DOI despite being the canonical citation, so entries cite open pages; Foot's and Griffiths' textbooks were research input only (OUP page is JS-walled, no abstract extractable).

Gravitation & QFT references

Records
30 entries, each citing its paper or reference page under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-26

Sources opened and fact-checked 2026-10-26: arXiv gr-qc/0302040 (Blagojević PGT lectures), 1010.1041 (f(T) local Lorentz), gr-qc/9405057 (Donoghue GR-as-EFT), 1210.3775 (Blagojević–Hehl reader front matter), hep-th/0406216 (Dunne Euler–Heisenberg), 1201.2309 and 2005.12913 (PVLAS), gr-qc/0604051 (Mottola–Vaulin trace anomaly), 1203.1706 (Danilishin–Khalili GW quantum measurement), plus Wikipedia pages. Springer blocked extraction of the EPJ C 80:611 stability paper and no arXiv version exists, so it has no entry; the local Yang–Mills mass-gap preprint is not cited — the entry uses the Wikipedia Millennium-problem page instead.

Algebraic structures references

Records
15 entries, each citing a Wikipedia article or paper page under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-26

Sources opened and fact-checked 2026-10-26: arXiv math/0511691 (large annihilators in Cayley–Dickson algebras; its abstract carries Moreno's multiples-of-four theorem) plus 14 Wikipedia pages from the quaternion-to-sedenion tower. Moreno's own zero-divisor paper (q-alg/9710013) was verified open but is cited via the annihilators paper; de Marrais' unpublished "42 Assessors" box-kites paper is excluded as a source per policy.

AI methods & agents references

Records
20 entries, each citing its paper or reference page under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-26

Sources opened and fact-checked 2026-10-26: arXiv 2606.24937 (Hitchhiker's Guide to Agentic AI), 2301.04655 (generative AI review), 2610.16733 (TheoPhysEval), 2601.22401 (Gemini–Erdős), 2605.22763 (formal proof search), 2305.07440 (memory mapping RL), 2407.16212 (optimal experimental design, Acta Numerica 2024), plus 13 Wikipedia pages. The Acta Numerica DOI shows a placeholder in the preprint, so entries cite the arXiv page; every number (98% accuracy, 9/353 Erdős problems, 44/492 OEIS conjectures, 700 conjectures / 13 resolved) was checked against the cited abstract.

Computing references (Wikipedia)

Records
52 entries, each linking one Wikipedia article under Sources
Licence
Citations only; text is not reproduced
Captured
2026-10-22

Includes languages, concepts, machines, and pioneers; URLs verified 200.

Original study papers via Crossref DOIs

Records
9 landmark studies citing their original paper under Sources
Licence
Citations only; articles are not reproduced
Captured
2026-10-20

Every DOI was resolved through the Crossref API and matched on title, journal, and year before citation: Milgram 1963, Asch 1956, Watson & Rayner 1920, Bandura et al. 1961, Stroop 1935, Darley & Latané 1968, Festinger & Carlsmith 1959, Schachter & Singer 1962, Simons & Chabris 1999, Tolman 1948, and Harlow 1958. Studies without a single canonical paper (Stanford prison, marshmallow test, Strange Situation, Hawthorne program, Pygmalion, Ebbinghaus 1885 monograph) cite their standard reference pages; replication status notes cite Watts, Duncan & Quan 2018, Levitt & List 2011, and Le Texier 2019 respectively.

Psychology effect references (original papers, Crossref DOIs, Wikipedia)

Records
14 effect entries, each linking one reference under Sources
Licence
Citations only; reference text is not reproduced
Captured
2026-10-20

Effects cite their original paper where one defines them (framing 1981, Stroop 1935, bystander 1968, misinformation 1974, Barnum 1949, Dunning-Kruger 1999; inattentional blindness cites Simons & Chabris 1999, which credits the term to Mack & Rock) and otherwise the English Wikipedia article (anchoring, dissonance, mere exposure, Hawthorne, serial position, spacing, spotlight). Coinage and first-description claims (Hawthorne: French 1953; serial position: Ebbinghaus) are checked against the cited page.

Field of psychology references (Wikipedia)

Records
12 field entries, each linking one reference page under Sources
Licence
Citations only; reference text is not reproduced
Captured
2026-10-20

Founding attributions (Witmer 1896, Neisser 1967, Triplett 1898, Allport 1937, Binet 1905, Münsterberg 1913 and 1908) are stated on the cited pages and were checked against them.

Psychologist references (Wikipedia, Nobel Prize)

Records
14 figure entries, each linking one reference under Sources
Licence
Citations only; reference text is not reproduced
Captured
2026-10-20

Pavlov cites his Nobel Prize facts page (1904, Physiology or Medicine, work on digestion); the rest cite the English Wikipedia biography. Kahneman is canonical in /economics/economists and linked, not duplicated. James, Freud, and Piaget cross-link their philosopher pages.

IUPHAR/BPS Guide to PHARMACOLOGY

Records
428 receptor and non-GPCR target records
Licence
CC BY-SA 4.0
Version
2026.1
Captured
2026-05-28

Wikimedia Commons

Records
77 images, hosted locally with per-image credit
Covers
catalog illustrations
Licence
Public domain (32), CC BY-SA 3.0 (23), CC BY-SA 4.0 (7), CC0 (4), CC BY 3.0 (2), CC BY-SA 2.0 (2), CC BY-SA 2.5 (2), GFDL 1.2 (1), CC BY 2.0 (1), CC BY 2.0 it (1), CC BY-SA 1.0 (1), CC BY 2.5 (1)

46 further references in this dataset named Commons files that do not exist. They were removed rather than repaired and are queued for individual sourcing.

Ancient Mesopotamian Gods and Goddesses (Oracc / University of Pennsylvania)

Records
60 deity pages linked to AMGG entries, cuneiform corpora (ETCSL, ETCSRI, CAMS, CDLI), and bibliography citations
Licence
CC BY-SA 3.0 — no AMGG prose is reproduced; only citations and outbound links are taken
Captured
2026-10-18

Human emotion profiles

Records
110 emotion profiles × 17 neurotransmitter and neuropeptide scores
Licence
Site content
Captured
2026-10-18

Imported from scripts/data/emotions_rows.csv by scripts/import_emotions.js. Scores are relative percentages supplied by the site owner, not measured concentrations.

Hand-authored corpus

Records
2,080 catalog entries, plus ~9,500 hand-written pages
Licence
Site content

Machine-assisted and not uniformly verified. The /mesopotamia section ties attested Mesopotamian cuneiform scholarship to Oracc/AMGG (above). Modern ancient-astronaut hypotheses (Sitchin and successors) now sit in /mesopotamia/concepts, the old /mesopotamia/theories pages having been merged there; they are to be attributed to their 20th-century proponents, not presented as scholarship.

PubMed

Records
1,668 distinct PMIDs cited
Licence
Citations only; abstracts are not reproduced

Bioassay and Screening Method References (Wikipedia)

Records
12 assay entries, each linking one reference page under Sources
Licence
Citations only; reference text is not reproduced
Captured
2026-10-21

Each entry cites its English Wikipedia article: patch clamp, radioligand binding, FRET, BRET, ELISA, Western blot, HTS, microdialysis, Schild regression, Ames mutagenicity, and MTT cytotoxicity.

Experimental and Genetic Model References (Wikipedia)

Records
12 model entries, each linking one reference page under Sources
Licence
Citations only; reference text is not reproduced
Captured
2026-10-21

Each entry cites its English Wikipedia article: knockout mice, Cre-Lox recombination, Tet-Off/Tet-On systems, optogenetics, DREADDs, pooled CRISPR screens, iPSCs, organoids, organ-on-a-chip microfluidics, HEK 293, CHO cells, and HeLa.

Computational and Modeling Software References (Wikipedia)

Records
12 software entries, each linking one reference page under Sources
Licence
Citations only; reference text is not reproduced
Captured
2026-10-21

Each entry cites its English Wikipedia article: AutoDock/Vina, PyMOL, ChimeraX, AlphaFold, RDKit, Open Babel, GROMACS, AMBER, NONMEM, ImageJ/Fiji, CellProfiler, and KNIME.

Chemical, Structural, and Pharmacogenomic Database References (Wikipedia)

Records
12 database entries, each linking one reference page under Sources
Licence
Citations only; reference text is not reproduced
Captured
2026-10-21

Each entry cites its English Wikipedia article: ChEMBL, PubChem, IUPHAR/BPS Guide to Pharmacology, DrugBank, BindingDB, Protein Data Bank (wwPDB), UniProt, PharmGKB, ZINC, ClinicalTrials.gov, KEGG, and ChEBI.

Research Tool Compound References (Wikipedia, with PubChem identifiers)

Records
12 tool compound entries, each linking one Wikipedia article under Sources
Licence
Citations only; reference text is not reproduced
Captured
2026-10-21

Each entry cites its English Wikipedia article; the PubChem CID, molecular formula, molecular weight, and InChIKey fields were checked against PubChem for tetrodotoxin, forskolin, IBMX, bicuculline, CNQX, dizocilpine, ouabain, wortmannin, U0126, thapsigargin, staurosporine, and cycloheximide.

Pharmacokinetic and Pharmacodynamic Parameter References (Wikipedia)

Records
12 parameter entries, each linking one reference page under Sources
Licence
Citations only; reference text is not reproduced
Captured
2026-10-21

Each entry cites its English Wikipedia article: IC50, EC50, Kd, Hill coefficient, therapeutic index, LD50, biological half-life, volume of distribution, clearance, bioavailability, AUC, and Lipinski's rule of five.

Reuse

External datasets remain under the licences above; several require attribution and CC BY-SA 4.0 additionally requires share-alike.