Archive of Legal validity

Verify the authenticity of a document

Check whether a document signed on Assin is authentic by entering the envelope ID, the document ID or the blockchain transaction hash, with no login needed.

What is blockchain at Assin?

Understand how Assin uses blockchain to register the fingerprint (hash) of your signed documents and guarantee they were not altered.

What are the benefits of electronic signatures?

Discover the benefits of electronic signatures with Assin: legal validity, traceability, speed, savings, security and API integration.

Do digitally signed documents have legal validity?

Yes: in Brazil, electronically signed contracts are legally valid. Learn the legal basis and what Assin records to prove authorship and integrity.

What are the laws that regulate the use of digital signatures?

Summary of the main Brazilian rules that give legal basis to electronic and digital signatures: MP 2,200-2/2001, Law 14,063/2020 and others.

What is ICP-Brasil?

The ICP-Brasil certificate is optional at Assin and adds a digital-certificate signature to the envelope, with legal validity recognized by MP 2,200-2/2001.