Here is how to sign a message using a Coinbase Bitcoin wallet address:
https://support.coinbase.com/customer/portal/articles/1526413-how-do-i-sign-a-message-with-a-bitcoin-address-That being said, I would recommend not using Coinbase as your wallet. Download Bitcoin-Qt or an alternative like Armory. They are all available for Mac. Don't download Bitcoin-Qt to a storage-limited device like a laptop with an SSD or a small hard drive. You will want at least 50GB of space to store the blockchain. No, it is not that big yet, but it is roughly half of that and it is growing. You don't want to have to delete stuff off your laptop in order to fit the blockchain. If storage is constrained on all your Macs, use a lightweight client like Electrum that does not require a full copy of the blockchain.
Hello,
I opened a support ticket many days ago but have had no response so trying on here. When you first come the website it says in BIG letters "You do not need to (and cannot) register an account on Eligius." but now it wants me to log in to track the status of my support query....have I missed something?
My original question went something like this.....
I am very new to mining (how many times must support emails start with that line?) but on reading your site, you list Blockchain as one of the compatible wallets, so that is what I used (an online wallet rather than downloading full blockchain). However, I now understand that since I have used a Blockchain wallet address as my mining address with this pool, I cannot sign the message in bitcoin-qt to change my settings to add a NMC address - or make any other changes for that matter, such as changing the pay out threshold.
I see that one cannot have funds moved to a new address and I understand that policy, so all I can think is that I must withdrawn my funds to the Blockchain wallet and start a new mining account with a Bitcoin-qt address (effectively delete old account and start again) but that has at least 2 issues as I see it: -
1. I will have to start again and so have lost the last week building up my rewarded shares percentage.
2. How do I access the Namecoins already mined during this time?
Is there another way around this please? I have tried adding my Blockchain address to the bitcoin-qt address book but it will not let me verify the message giving the error message "Private key for entered address is not available".
Many thanks in advance of any response/help
HPmuirt