Quote from: Bitsky on May 27, 2017, 08:02:52 AM

With so many replies I might have missed the answer to the following:

Is it possible to claim clams by signing a message with your privkey?

Giving the privkey to some website, or some other software (even if it might be legit) is not a valid option.
I'm aware that you can first empty the BTC address to a new one, but that's not an option in some cases (like, giving up my sig address).
If signed proof isn't possible/planned, then I'll just ignore my clams to be on the safe side.

I was looking for an answer for your question and found this and I think is related to the topic, after that quote, I will write my suggested option for your case.

Quote from: dooglus on December 03, 2016, 02:25:36 AM

Quote from: wetsuit on December 01, 2016, 08:20:24 AM

If I understand correctly, to claim CLAMS I only need to provide a signed message from the respective BTC or DOGE address. Is that correct?

Nearly, but not quite. You need to provide a signature, but of a transaction, not a message. This is the same that Bitcoin uses - when you want to spend your Bitcoins your wallet makes a transaction and signs it using your Bitcoin private key.

The point you may be missing is that the private key for your free CLAMs *is* your BTC private key. The private keys are the same, and the addresses only look different because of the 'version byte' (the thing which makes BTC addresses start with a '1' while CLAM addresses start with an 'x').

So the easiest way to sign a transaction using your private key is to import your old BTC/DOGE private keys into a CLAM wallet, let it rescan, and then send a transaction from the CLAM wallet as you would from any other wallet.

Quote from: wetsuit on December 01, 2016, 08:20:24 AM

If so, could you please tell me the command to use with the server daemon for doing this?

"clamd sendtoaddress

" - or use the QT version and use the send tab.

Disclaimer: the following steps are supposing that clam client allows to create signed transactions able to be push by other clam client, also this not intended to be a full guide that you should follow, is just few ideas about how you can approach to get your clams.

My suggestion is that maybe is possible for you to set up a clean OS where you can install the Clamclient and let it fully sync with the clam blockchain, maybe a full sync won't be needed because I think since the undug clams were assigned prior the Clam blockchain started running, those clams must be at the beginning of the Clam blockchain (but at least you will need a few blocks in your clam blockchain), then you can unplug/block/disconnect it from the Internet from your freshly installed OS, import your btc/ltc/doge wallet, check how many Clams you got and them create a transaction and sign it with you Private Keys, you will need to create a receiving address and properly make a backup of it, so you don't send your Clams into oblivion.

All this done without Internet connection should protect you from the possibility of your Private Keys being sent by the software to the Internet, then with the transaction saved in a file you can find a way to decode the transaction, there you can see if there is something wrong with the code or signature, then you can push the transaction to the clam blockchain and your transaction should be mined and validated, usually you'll have few option with clam to push your transaction, you can make another Clean OS and this time I think you should have to fully sync it, so you can push your transaction or you can ask a friend with a sync clam client to push it for you (coz as far I know there no risk for your Clams to be stole by being push by other person).

After all that, you need to properly delete your clean OS (the one were you put you btc/ltc/doge wallet) so you don't let any possibility of your Private Keys being compromised, Probably occupy the Entire disk with new data and proper format should do it.