What sproof is used for

sproof allows to register digital documents or electronic records, complemented with a custom set of attributes and a timestamp. This data is stored in a decentralized and secure database.

NotarizationIdentity managementAccess control

  • Timestamping
  • Authenticity
  • Integrity

  • Document folder
  • Attribute-based
  • Data under user control

  • Globally available
  • Reusable
  • Transparent
sproof allows for the notarization of digital documents and digital data or electronic logs. Each data item is locked with a timestamp and its integrity can be verified by anyone at any time. sproof is a digital document file and can be used for managing personal documents, such as passports and ID cards. Documents can easily be presented for verification. The sproof App is designed as an easy-to-use interface for managing digital documents.sproof serves as the basis for a decentralized and globally available tool for managing digital access rights. The permission to allow someone access to a data item can be easily granted and revoked.

What can be done with sproof

Every document that is registered with sproof can be easily and fast verified. If documents are composed of attributes, a subset of these attributes can be verified without the need to disclose the full data. This allows for privacy-preserving verification of documents.

Who uses sproof

sproof is designed for public administration, companies, organizations and individuals. Each user is part of a Web of Trust and can act as issuer, receiver and verifyer. Issuers also have the ability to revoke previously issued documents.

Issuing documents

Documents can be issued by each individual, organization or company. Issuers are organized in a Web of Trust and can confirm each other or strengthen their profile by other methods. Digital documents are assigned or issued to organizations or individuals. The receivers can use these documents to prove possession to others and to allow for easy verification.

Revoking documents

Issuers have the ability to revoke document at any time.

Verifying documents

Everyone can verify a document via sproof. This requires the permission form the document owner or the possession of the document or a set of attributes.

What happens to digital documents

Digital document are registered in a decentralized and blockchain-based database and cannot be changed or modified once committed. The content of private documents is not stored on the blockchain. Public documents are saved in a distributed file system and are available globally.

Typical applications for sproof

  • Social Media. Everyone can share data on social media platforms and proof ownership of that data.
  • Certificates. Schools and universities issuer digital certificates. Given the consent of the receiver everyone can verify the authenticity of these documents.
  • Tickets and Passes. Long-term tickets and passes can be issued and revoked.
  • Travel Documents. Digital passports and public transport tickets are managed and processed digitally.
  • Electronic Maintenance Records. Documents for electronic maintenance and for warranty issues are stored savely.