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https://www.hive-engine.com is a place you will want to be VERY familiar with if you want to leverage your sidechain assets on Hive. Just like Ethereum has erc-20, WeedCash is a token on the Hive Blockchain.

Just recently some of the sidechains have started to become sovereign and commit to their own witnesses.

Also, you will want to look at the Witnesses tab on https://www.peakd.com/witnesses, you can vote for 30 witnesses, and those are the people who will verify your transactions on Hive and WeedCash. WeedCash has its own witness, it's ranked rather low and I would suggest supporting it!