Proof of existence

Allows to certify a document ( of any format ? ), it gives a fingerprint relative to the date of the certification and it is stored in an online "Bitcoin blockchain". It can also verify the integrity of a document. Created by Manuel Araoz

Free Open Source

Mac

Windows

Linux

Web

Self-Hosted

Python

JSON

JavaScript

...

Bitcoin

Alternatives to Proof of existence for all platforms with any license

Cesium

Explorer of Duniter communities network, to certify trusted peers, to receive and send transactions.

Free Open Source Mac Windows Linux Web Android ... Self-Hosted JSON (Planet) Duniter JavaScript Gulp.js Ionic Framework
Blockchain Communities Community based Community management ... Cryptocurrency Decentralized Distributed Peer-To-Peer Add a feature

8 Like
ZeroID

ZeroID - An authentication provider for the distributed network zeroNet remotely: https://bit.no.com:43110/Zeroid.bit locally: http://127.0.0.1:43110/zeroid.bit/ ...

Free Open Source Mac Windows Linux Python JSON ... JavaScript
Python Add a feature

6 Like
Stampery

Stampery generates legally binding proofs of existence, integrity and ownership. Send notaries on vacation. Certify your documents easily and safely.
- Same functionaliteit, but free and has a good API intergration Guest • Feb 2018
Free Web iPhone
Blockchain Certification Add a feature

5 Like
OriginStamp.com

Creating blockchain-based, tamper-proof timestamps. Proving that data didn't change.

Free Web Android Android Tablet
Blockchain Documentation Timestamps Add a feature

1 Like
Woleet

Blockchain timestamping and certification Software as a Service , SaaS. Woleet offers a BaaS (Blockchain as a service) platform with the following features : .

Commercial Mac Windows Linux
Blockchain Certification Certifications Timestamps Add a feature

0 Like
Know any more alternatives to Proof of existence?
Suggest an application to this list