Proof of existence is a resource that the BITCOIN BLOCKCHAIN ​​offers us, it is a notary service that offers irrefutable proof of instant, anonymous, distributed and secure existence of any document, agreement or contract.
It can be used to register in the blockchain the image or logo, imagotype, isotypo of a company, association, cooperative ...
The price per document is very low, (right now) 0.00025BTC.
With this article I want to show more applications of use that we have in blockchain and say that in China they have already approved as judicial evidence to have in the giant bitcoin blockchain file registered by a person who could demonstrate that what he claimed to be his could demonstrate it because was on the blockchain.
We need more use cases and more decentralized applications that improve the bitcoin and cryptocurrency network day by day.
I think that everything will come when video games start to move cryptos and that a large young part of the population will adopt what Internet 3.0 is for me.
And now, returning to the subject of the proof of existence, don't forget that if you have a written book, or if you are a music composer, or you write poetry or you are a designer, with · Proof of existence · you can show that this content is yours !!

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https://proofofexistence.com/