API for uploading videos

[jellegerbrandy]

A call to the API will tipically look like this:

https://paratii.video/rip?url=http://youtu.be/videoId&account=0x123455&signature=0x1234..

where the signature is a signed hash of the given paraemeters

What the call does is:

• [ ] check the correcntess of the hash
• [ ] make an estimate of the costs and check the allowance of the funds [can be skipped in 1st iteration]
• [ ] download the vid from youtube
• [ ] transcode
• [ ] register the video on the blockchain
• [ ] return a JSON repsonse with some data (like its hash)

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In a second iteration, we'd want to decentralized the YT download: a client does the download, and sends the video file. For that, we'd replace the rip call with a transcode call, that works exactly as above, except that he vid is not taken from yt but from the vid provided with the request