Blocking Bitcoin Core from downloading Blockchain ?

[OmegaStarScream]

Is it possible to do that ?
All I want is to install Bitcoin Core and only use it to Verify and sign messages using my addresses but I also want it to stop downloading the blockchain each time I run the software since I don't really need it for those two features I mentioned above .

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[pedrog]

Why not use a lite wallet?

Or blockchain.info?

[--Encrypted--]

simply disconnect before you open the wallet? or set the proxy setting to IP 127.0.0.1 and whatever port.

[OmegaStarScream]

Why not use a lite wallet?

Or blockchain.info?

I have my wallet.dat and I have my addresses there , I want to use them to sign messages that's why I don't want to switch somewhere else. (not even sure if I can import the addresses and sign from blockchain.info or not) .

simply disconnect before you open the wallet? or set the proxy setting to IP 127.0.0.1 and whatever port.

I'd prefer to stay connected on the internet , but I will try that proxy setting suggestion ,ty

[pedrog]

Why not use a lite wallet?

Or blockchain.info?

I have my wallet.dat and I have my addresses there , I want to use them to sign messages that's why I don't want to switch somewhere else. (not even sure if I can import the addresses and sign from blockchain.info or not) .

You can import your addresses to any decent wallet, including Blockchain.info.

[OmegaStarScream]

Why not use a lite wallet?

Or blockchain.info?

I have my wallet.dat and I have my addresses there , I want to use them to sign messages that's why I don't want to switch somewhere else. (not even sure if I can import the addresses and sign from blockchain.info or not) .

You can import your addresses to any decent wallet, including Blockchain.info.

I use both Electrum and Blockchain.info , I can see that we can import using the private keys on BLockchain but can we sign and verify messages ? and for what comes to Electrum , if I import private keys , can I recover them using the seed later ? or new imported addresses cannot be retreived using the seed

[--Encrypted--]

Why not use a lite wallet?

Or blockchain.info?

I have my wallet.dat and I have my addresses there , I want to use them to sign messages that's why I don't want to switch somewhere else. (not even sure if I can import the addresses and sign from blockchain.info or not) .

You can import your addresses to any decent wallet, including Blockchain.info.

I use both Electrum and Blockchain.info , I can see that we can import using the private keys on BLockchain but can we sign and verify messages ? and for what comes to Electrum , if I import private keys , can I recover them using the seed later ? or new imported addresses cannot be retreived using the seed

blockchain.info can sign but not verify. wallet created by importing private key to electrum can't be retrieved from seed but you still have the private key so you can make a new one.

edit:
ofc if the imported wallet generates new addresses they can't be recovered unless you save the priv keys.

[StratusOakmont]

I think blocking RPC and P2P ports will work
ports 8332 and port 8333

but its best to export private key from bitcoin core wallet and import it to light wallet as suggested above, you can try multibit
its easy to use

[pedrog]

And first results on google for verifying signatures:

http://coinig.com/

And with Multibit: https://multibit.org/en/help/v0.5/help_signAndVerifyMessage.html

[thejaytiesto]

I wouldn't recommend going to blockchain.info (im assuming your wallet.dat is your main wallet?.)

If you are too annoyed at having to download the blockchain, you may want to try 0.12 when it comes out, run a pruned node so you don't have to download a lot of the blockchain, and also it will run a lot faster. Cant wait to try it out.

[OmegaStarScream]

I wouldn't recommend going to blockchain.info (im assuming your wallet.dat is your main wallet?.)

If you are too annoyed at having to download the blockchain, you may want to try 0.12 when it comes out, run a pruned node so you don't have to download a lot of the blockchain, and also it will run a lot faster. Cant wait to try it out.

It's basically my first bitcoin wallet , and it contains my addresses but It doesn't contain any funds , I just need it sign messages with it . Also isn't 0.12 out already ?

[shorena]

And first results on google for verifying signatures:

http://coinig.com/

And with Multibit: https://multibit.org/en/help/v0.5/help_signAndVerifyMessage.html

Coinig is broken I wouldnt recommend using it.

If you want to avoid core connecting to another node add the following line to your bitcoin.conf[1] file (create it in your ~/.bitcoin (linux) or %APPDATA%/Bitcoin (windows) folder if needed)

Code:

connect=127.0.0.1:8333 #forces a single connection to localhost keeping core offline, remove line to connect to other nodes.

[1] https://en.bitcoin.it/wiki/Running_Bitcoin#Sample_Bitcoin.conf

[OmegaStarScream]

And first results on google for verifying signatures:

http://coinig.com/

And with Multibit: https://multibit.org/en/help/v0.5/help_signAndVerifyMessage.html

Coinig is broken I wouldnt recommend using it.

If you want to avoid core connecting to another node add the following line to your bitcoin.conf[1] file (create it in your ~/.bitcoin (linux) or %APPDATA%/Bitcoin (windows) folder if needed)

Code:

connect=127.0.0.1:8333 #forces a single connection to localhost keeping core offline, remove line to connect to other nodes.

[1] https://en.bitcoin.it/wiki/Running_Bitcoin#Sample_Bitcoin.conf

I assume it's the same thing as doing this ? Here is what I've done :



and It's now says "NO block source available" , I assume it's working fine then thanks

[shorena]

And first results on google for verifying signatures:

http://coinig.com/

And with Multibit: https://multibit.org/en/help/v0.5/help_signAndVerifyMessage.html

Coinig is broken I wouldnt recommend using it.

If you want to avoid core connecting to another node add the following line to your bitcoin.conf[1] file (create it in your ~/.bitcoin (linux) or %APPDATA%/Bitcoin (windows) folder if needed)

Code:

connect=127.0.0.1:8333 #forces a single connection to localhost keeping core offline, remove line to connect to other nodes.

[1] https://en.bitcoin.it/wiki/Running_Bitcoin#Sample_Bitcoin.conf

I assume it's the same thing as doing this ? Here is what I've done :



and It's now says "NO block source available" , I assume it's working fine then thanks

Yes, setting a non existing proxy should do the trick as well. "No block source..." is the message you want (at least in your case) .