Using Bitcoinj with Multichain

Question

I want to create a blockchain where i can store Hash of a file and timestamp irt and then verify its existence, i saw a video tutorial using Bitcoinj that shows '' Building a document timestamping contracts app in under 30 minutes''

Is it possible to do so using multichian (using bitcoinj or alternantives)?

Is there any leads to help achieve this project ( tutorials . ...)?

Thanks

Answer 1

The basic idea is to use transaction metadata to store this extra information, and APIs like sendwithmetadata make this really easy. This following tutorial might be of some help:

http://www.multichain.com/developers/creating-data-streams/

Also FYI we are working on a feature which will make general data storage in blockchains much easier than sending zero asset transactions with metadata.