Registered months ago and I really can use this post to help me verify things again(I'm a paranoid person). While having my EOS keypair backup properly , I got nervous one day looking at the keypair wondering if I really saved it correctly.
I then made a post below which can help to verify if your EOS keypair is valid:

https://steemit.com/eos/@fr3eze/verify-eos-private-key-by-mapping-to-public-key

Also, I have received my eosDAC under the same registered ETH address, I suppose I don't have to register again for the eosDAC right?