Text Service Infrastructure

The plain text inventory format is
URN [TAB] Title [TAB] Year [TAB] Author [TAB] Copyright restricted [TAB] lang [NL]

Public Data Instances	Namespace State Access Endpoint (Inventory) Inventory Structure (Treemap) Lang Copyright Restricted (*) Content Data Provenance Downloadable Resources ancJewLit Stable 📚 🖌 heb,arc Free Classical Jewish sources AncJewLit GitHub DB+SRC VRT Word2Vec Model Current Database dhd Stable 📚 🖌 deu Free Abstracts of DHD conference published by Verband Digital Humanities im deutschsprachigen Raum e.V. DHd-Verband GitHub DB+SRC VRT Word2Vec Model Current Database dsb WIP, URNs not persistent 🖌 dsb(,deu,hsb) Mixed Lower Sorbian text corpus Serbski Institute Operator / Admin dta WIP 📚 🖌 deu Free Deutsches Textarchiv Kernkorpus + Erweiterung Projektseite (BBAW) edh Stable 📚 🖌 Multi Free The Epigraphic Database Heidelberg contains the texts of Latin and bilingual (i.e. Latin-Greek) inscriptions of the Roman Empire Epigraphic Database Heidelberg DB+SRC VRT Word2Vec Model Current Database folgershakespeare Stable 📚 🖌 eng Free All Shakespeare's works Folger Shakespeare Library DB+SRC VRT Word2Vec Model Current Database gps4 Stable 📚 🖌 deu Free German Political Speeches corpus compiled by Adrien Barbaresi (6'685 documents) German Political Speeches Corpus and Visualization DB+SRC VRT Word2Vec Model Current Database gwtc Stable 📚 🖌 eng Fully The Game Walkthrough Corpus reduced to 8'616 Neoseeker walkthroughs. Game Walkthrough Corpus humboldtdigital Stable 📚 🖌 deu Free Tagebücher, Briefe, Dokumente, Forschungsbeiträge, Chronologieeinträge der Edition Humboldt Digital (Version 11.0.1) TELOTA (BBAW) GitHub DB+SRC VRT Word2Vec Model Current Database jeanpaulbriefe Stable 📚 🖌 deu Free Daten der digitalen Briefedition "Jean Paul – Sämtliche Briefe digital" (https://www.jeanpaul-edition.de) TELOTA (BBAW) GitHub DB+SRC VRT Word2Vec Model Current Database kant Stable 📚 🖌 deu,lat,fra Free Kant’s gesammelte Schriften. Neuedition der Abteilung I (https://kant-digital.bbaw.de/) TELOTA (BBAW) GitHub DB+SRC VRT Word2Vec Model Current Database lebenswelten Stable 📚 🖌 deu Free Lebenswelten, Erfahrungsräume, politische Horizonte (Familie Lehndorff 18.-20. Jhdt) and Neuzeitlich-bäuerlicher Lebenswelten (ostpreußische Gutsarchive) TELOTA (BBAW) GitHub DB+SRC VRT Word2Vec Model Current Database openarabicpe Stable 📚 🖌 ara Free Open Arabic Periodical Editions (Muqtabas, Manar, Ustadh, Haqaiq, Lughat, Zuhur) OpenArabicPE GitHub DB+SRC VRT Word2Vec Model Current Database pbc Stable 📚 🖌 Multi Free 20 copyright-free parallel bible translations Parallel Bible Corpus DB+SRC VRT Word2Vec Model Current Database pcp Stable 📚 🖌 fra Free Chrétien de Troyes's Le Chevalier de la Charrette (Lancelot, ca. 1180) The Princeton Charrette Project DB+SRC VRT Word2Vec Model Current Database textgrid Stable 📚 🖌 deu Free Textgrid The Digital Library in Textgrid DB+SRC VRT Word2Vec Model Current Database tgap Stable 📚 🖌 eng,cat Free Thomas Gray Archiv Poems Thomas Gray Archive DB+SRC VRT Word2Vec Model Current Database voth Stable 📚 🖌 Multi Free David Boder: Voices of the Holocaust David Boder: Voices of the Holocaust DB+SRC VRT Word2Vec Model Current Database (*) The current list of requests that are available for copyright restricted texts is documented here.
Online Tools	Namespace Resolver - Resolve URN namespaces to API endpoints oTAPIlot - Explore and query registered API endpoints Openleaf - Read texts in ebook style
Resources and Source Code	Source Code Repositories (Git hosted via Bitbucket.org)
Suggested Citation	Jochen Tiepmar. 2025. Text Service Infrastructure. URL https://urncts.eu, requested on

Programming Interfaces & Export Files

Usage Examples are available via the left column

Selected Collections in E-Book Style

Cooperation and Service Contracts

Need a custom text infrastructure? I provide CTS/DTS, text mining, corpus tools, APIs and data hosting. Contact me for a service contract.
Adding a TEI/XML corpus to the existing infrastructure is free of charge.

State of Infrastructure

Chronicle

Availability and Software-Versions (versionsoftware.php): 🖌 📚
Database Versions (versiondata.php): 🖌 📚

Central Enquiry

FAQ

What is this?

tl;dr: This is a decentralized text data service based on Canonical Text Service, Distributed Text Service and additional text APIs.

Is the implementation feature complete?

CTS: Stable. DTS: Work in Progress. See the Roadmap for planned features.

How do data requests work for texts that are copyright restricted?

Copyright-restricted data can be accessed through temporary, dataset-specific access tokens for authorized users.

Can I host my data on my own server ?

Yes. Data sets are available with database and source via Zenodo and can be deployed on your own server.

Are CTS URNs persistently citable?

CTS URNs are designed for persistent citation. Work-in-progress corpora are explicitly marked. Mutable data are versioned via the namespace.

How reliable is this service?

The software and copyright-free data sets are openly available and can be independently deployed. A future cloning mechanism will further reduce the dependence on individual servers.

Is it finally "A Library of a Billion Words"?

Academic Mentions

⇒ Jacob Langeloh (2024) : Unleash the Apparatus? Towards a shared representation of knowledge about connections between primary sources.

⇒ Thibault Clérice, Hugh Cayless, Jonathan Robie, Ian W. Scott (2026) : Distributed Text Services 1.0: An API Standard for Publishing and Extending TEI Document Collections.

Legal & Data Protection

Non-commercial academic research and data service.
Impressum and Data Protection