ZeroID is described as '- An authentication provider for the distributed network zeroNet' and is an app in the Development category. There are more than 10 alternatives to ZeroID for a variety of platforms, including Windows, Linux, Online / Web-based, Mac and Self-Hosted solutions. The best alternative is Keybase, which is both free and Open Source. Other great apps like ZeroID are ZeroNet (Free, Open Source), Duniter (Free, Open Source), Cesium (Free, Open Source) and ZeroVerse (Free, Open Source).
Explorer of DUniter communities network, to certify trusted peers, to generate an universal dividend, to send & receive transactions from anyone. Multi-currency-wallet for the currencies based on UCP - DUniter Protocol :
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.
Proof of ownership : Certify that a file or email is authored by you. Proof of existence : Certify that a file or email existed at a certain point of time. Proof of integrity : Certify that a file or email was not tampered with.