Proof of existence

Allows to certify a document ( of any format ?

14 Alternatives To Proof of existence

Amazon Pay

Amazon Pay is an online payment service that makes checkout on your site fast and secure for hundreds of millions of Amazon customers around the world.

Circle Pay

Send money like a text. No fees. No borders. No one else is doing this.

CoinMarketCap

Crypto-currency market capitalizations.
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Duniter

A network of communities based on trusted human certifications.

Keybase

Keybase will be a public directory of publicly auditable public keys.

Litecoin

Litecoin is a peer-to-peer Internet currency that enables instant payments to anyone in the world.
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OneName

OneName allows you to take control of your identity by registering a blockchain ID
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OpenVPN

OpenVPN - The Open Source VPN
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Paytomat Wallet

Paytomat is not just another wallet.

Sakia

Explorer of DUniter communities network, to certify trusted peers, to generate an universal…

Stampery

Stampery generates legally binding proofs of existence, integrity and ownership.
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Tor Browser

Tor is free software for enabling anonymous communication.

Woleet

Blockchain timestamping and certification Software as a Service , SaaS.
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ZeroID

ZeroNet authentication provider