Volume 1
From rúbrica to digital signature.
The history, foundations, devices and legal doctrines of the electronic signature, and how the platforms emerged that now coordinate who signs, in what order and with what proof.
To learn
Learn signatures, from history to mathematics.
Three books to read from start to finish, the documentation of the product, and an article to start with. For anyone who wants to understand electronic signatures before evaluating any tool.
Books
Three free books
The Rúbrica series: from the handwritten rúbrica to the digital signature, the proof that endures, and how to orchestrate signing.
Books →DocumentationThe user guide and the API
How to use the product, chapter by chapter, and every route of the API with an example.
Documentation →ArticlesArticles
Short pieces on proof, identity, rules, regions, sectors, cryptography and architecture. Start with one, or see them all in the blog.
Articles →Rúbrica
The Rúbrica books
Notebooks on signature, identity and digital trust. Three volumes to read online or download as PDF.
Volume 2
The proof that endures.
Formats, levels, timestamps, validation, trusted lists and preservation: everything needed so that a signature made today can still be proven thirty years from now.
Volume 3
Orchestrating the Signature.
Processes, identity, integration and operation at scale: how a signature service is designed, connected and governed, and what digital wallets, artificial intelligence and post quantum cryptography change in it.
Documentation
The user guide and the API.
Everything you need to use the product or connect to it.
Articles
Start with one article
Each article is a few minutes long and stands on its own.