Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- Self-Hosted
- JSON
- (Planet) Duniter
- JavaScript
- Gulp.js
- Ionic Framework




Proof of existence is described as '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' and is an app in the business & commerce category. There are eight alternatives to Proof of existence for a variety of platforms, including Web-based, Mac, Windows, Linux and Android apps. The best Proof of existence alternative is Cesium, which is both free and Open Source. Other great apps like Proof of existence are ZeroID, ScoreDetect, Stampery and bc2ip Desktop.





ScoreDetect is a digital content protection tool designed to help individuals and businesses safeguard their digital creations through verification certificates. It supports a variety of content types such as social media posts, images, videos, music, podcasts, blogs, PDFs...

Stampery generates legally binding proofs of existence, integrity and ownership. Send notaries on vacation. Certify your documents easily and safely.
bc2ip Desktop is a solution for secure file timestamping to protect your digital intellectual property. With a focus on data integrity, this software empowers creators to establish irrefutable records of their work's existence.



Wherever data is generated, with OriginStamp you can get it automatically timestamped to prove its integrity and time of existence.
ETcH anchors the SHA-256 hash of your file on Ethereum mainnet, creating permanent, tamper-proof proof that your document existed at a specific date. No crypto wallet, no signup required — just drop your file, pay €2 via Stripe, and receive a self-contained proof kit ZIP...
Blockchain timestamping and certification Software as a Service , SaaS. Woleet offers a BaaS (Blockchain as a service) platform with the following features :.
Same functionaliteit, but free and has a good API intergration