Verifying Bitcoin Core

[Lauda]

What about if i have Ubuntu with Bitcoin core in the PPA?  its auto updating it, i dont do anything manually beside clicking on Update  Huh

Launchpad generates a unique key for each PPA and uses it to sign any packages built in that PPA.

This means that people downloading/installing packages from your PPA can verify their source. After you've activated your PPA, uploading its first package causes Launchpad to start generating your key, which can take up to a couple of hours to complete.

Your key, and instructions for adding it to Ubuntu, are shown on the PPA's overview page.

https://help.launchpad.net/Packaging/PPA#Your_PPA.27s_key
Use Google.

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[O$IRIS]

How can I access the testnet of Bitcoin Core???

[hashitha54]

Be humble respect each other and help people specially for those people who needs help.
thanks for all of things

[bitcoinpete]

How to know that your license and certificate are not fake?

[fakerhunia]

does this update require resyncing the blockchain?

[uddyawham]

Is there room for me to chat privately with a contributor on this platform?

[mronezigger]

Bitcoin core am well sure is an implementation of bitcoin which was published by it's great founder satoshi Nakamoto under the name bitcoin which was later renamed bitcoin core,in other ways view company have been regulated for they release of hash,they process it's self has been documented BIP2 and BIP123 which are categoried

[PeaMine]

Is it possible to have the 0.17.0 release signatures added?

[Raincraft]

Is it possible to have the 0.17.0 release signatures added?

Just wanted to ask the same question. And what information I must learn as a beginner? From which forum here should I start?

[Timelord2067]

I downloaded Ver 16.3 as it was "urgent" - I downloaded the block-chain (again) 'cause bootstrap and porting dat files didn't work... Block chain is now downloaded but:

• There's yet another version "urgent" update or risk life and limb.
• All the wallet addresses start with "3" not "1"

Nice one people - WTF!

[PeaMine]

Is the 1.7.0 or 1.7.0.1 signatures available on here?

[OmegaStarScream]

Is the 1.7.0 or 1.7.0.1 signatures available on here?

The thread was last updated in September. You could go here, choose whatever version you want and then download the SHA256SUMS.asc file.

[ragnar dannesk gold]

Have I correctly verified Core?

I've done this following but am a bit out of my depth:

1. Downloaded and installed Kleopatra (GPG4WIN)
2. Imported Wladimir's ASC from Bitcoincore.org
3. Downloaded bitcoin-0.17.1-win64-setup.exe
4. Downloaded SHA256SUMS.ASC from Bitcoincore.org
5. Verified SHA256SUMS.ASC was created with Wladimir's certificate via Kleopatra (*See below)
6. Obtain SHA256 hash of bitcoin-0.17.1-win64-setup.exe (**see below)
7. Confirm the SHA256 hash matches the SHA256 hash in the SHA256SUMS.ASC file (***see below)




*Signature created on Tuesday, 25 December 2018 7:03:05 PM
With certificate:
Wladimir J. van der Laan (Bitcoin Core binary release signing key) <laanwj@gmail.com> (90C8 019E 36C2 E964)
The used key is not certified by you or any trusted person

**\Bitcoin>certUtil -hashfile bitcoin-0.17.1-win64-setup.exe SHA256
SHA256 hash of bitcoin-0.17.1-win64-setup.exe:
fa1e80c5e4ecc705549a8061e5e7e0aa6b2d26967f99681b5989d9bd938d8467
CertUtil: -hashfile command completed successfully.

***fa1e80c5e4ecc705549a8061e5e7e0aa6b2d26967f99681b5989d9bd938d8467  bitcoin-0.17.1-win64-setup.exe


As far as I can tell this is correct, but step 5 has me a bit unsure, mainly due to the following:



I am led to believe that this message is correct, and that 'The data could not be verified' is simply a result of me having not verified Wladimir's key via Kleopatra.

Does all of this look correct?

[Husna QA]

Have I correctly verified Core?

I've done this following but am a bit out of my depth:

<snip>
4. Downloaded SHA256SUMS.ASC from Bitcoincore.org
5. Verified SHA256SUMS.ASC was created with Wladimir's certificate via Kleopatra (*See below)
<snip>

As far as I can tell this is correct, but step 5 has me a bit unsure, mainly due to the following:



I am led to believe that this message is correct, and that 'The data could not be verified' is simply a result of me having not verified Wladimir's key via Kleopatra.

Does all of this look correct?

You must be Change Certification Trust from Wladimir's key to Full Trust or Ultimate Trust,

If you are using Kleopatra (Microsoft Windows):





If you are using GPG Keychain (Mac OS):

[BandanotherB]

I am confused, I want to download a bitcoin wallet to my windows desktop, it says the bitcoin core is 200+gb in size, does that mean you have to download all that size to use a wallet? is there no other quicker and easier way? Sorry noob here

[dooglus]

I am confused, I want to download a bitcoin wallet to my windows desktop, it says the bitcoin core is 200+gb in size, does that mean you have to download all that size to use a wallet? is there no other quicker and easier way? Sorry noob here

If you run Bitcoin Core, it will download over 200 GB of blockchain data.

If that's too much for you, you can use something like Electrum: https://electrum.org/#download and it will hardly download anything at all. There are tradeoffs: Electrum isn't a full node, you're connecting to a random Electrum server (which has indexed the full blockchain so you don't have to), and telling it which addresses you own. So you're giving up some privacy for the sake of convenience. Lots of people do it.

[Husna QA]

I am confused, I want to download a bitcoin wallet to my windows desktop, it says the bitcoin core is 200+gb in size, does that mean you have to download all that size to use a wallet? is there no other quicker and easier way? Sorry noob here

Yes, if you use bitcoin core, then you must download the whole blockchain.

-snip-

[raycoin_collect]

Is it worth/cost effective to mine bitcoin nowadays?
What is the best way to mine bitcoin?

Thanks

[dooglus]

Is it worth/cost effective to mine bitcoin nowadays?
What is the best way to mine bitcoin?

It will always be worth someone's while to mine bitcoin. If it wasn't, the difficulty would drop until it was.

Since you're asking this question it's likely not cost effective for you to mine bitcoin. You need access to modern specialized hardware and cheap electricity to make it more profitable.

[Husna QA]

Is it worth/cost effective to mine bitcoin nowadays?
What is the best way to mine bitcoin?

Thanks

Profitability comparison if using an ASIC device.
Live income estimation of all known ASIC miners : https://www.asicminervalue.com/


*(BTC=$9,457.97)

Note:
You can ask further questions about mining bitcoin in the following thread:
https://bitcointalk.org/index.php?board=14.0