Hi everyone,

I'm uncomfortable with doing anything too complicated because outside of our ecosystem anything vaguely complicated is intimidating and I want it to be simple.

So here it is.

1. Write down my 24 word seed phrase sorted alphabetically and give it to my partner or anyone else
2. Put the numerical index of the order of this into a deadman switch which will be sent to them if I fail to respond for my chosen period / times.

I believe this is secure but wanted to get many other opinions to be comfortable before I commence it.

Thoughts...?

Thanks!

Bitcoin Client Software and Version Number: 22.0.0
Operating System: Ubuntu 20.04.3 LTS
System Hardware Specs: Intel NUC w i3-4010u / 4 Gb RAM / 60Gb HDD / 1TB external Samsung SSD for blockchain
Description of Problem:

Rather than go over the many problems I've had let me focus on the problem now. I had to reindex because I had an error in one of the headers. This appears not to be finished despite running for 3 days now. It seems to be going progressively slower and getting nowhere. But I'd like to avoid a complete resync as I've already restarted once. I don't understand what the two %ages apply to and why it's still going so incredibly slowly when it's pulling between 200 and 300Mb a second off the HDD.
There are 10 peers connected (though little to no traffic to or from them) and no errors in the log.



.. help please.

Hi everyone,

I'm continuing to do more self education because I'm uncomfortable not having an understanding. I feel I've got a good understanding of the data structure of blocks and the transactions within them.
But I'd like to add to that by by documenting for myself how those data structures are changed by both segwit and taproot.
For me, understanding the data is the core of wider understanding of the processes around it.

As an example here are my notes on the transaction data structure.



Does anyone know of something similar containing the updates for segwit and taproot please?

Thank you!

Hi everyone,

I'm doing a little self education. I believe I understand the format and what is stored in the header and individual transactions but I have a gap I can't find the answer to.
The only ID I can find is for the transaction the unspent outputs are being pulled from. I can't find where the ID of the transaction itself is stored..?

Thanks for any help!

Hi everyone,

I have an Electrum wallet which contains addresses originally created in multibit. In that wallet there are no change addresses.
My question is firstly - where do I find documentation on precisely how electrum deals with change?
My specific questions are:
* will it add change addresses to my wallet?
* can I use one of my existing addresses as a change address?

Thanks!

I want to move a small amount of bitcoin from an address I keep in cold storage by storing a literal private key, because I consider that the most secure and portable.

If I create a wallet for the purpose of importing that private key, where will the change go? To the only address in the wallet? If I import two or more how does it decide which? I figure it's better to ask rather than experiment..

Thanks - and is the official documentation the best reference for Electrum?

I've had bitcoin for 5 or so years now and periodically jump back in and find things have changed - so I'm looking for some advice please.

I'm not happy with any of the common methods I can find for cold storage. Whether open source or not they have all evolved in the time I've had bitcoin.

But mainly I don't see why we should have to rely on software or worse hardware devices which may fail - to store bitcoin.

What I currently have as my preferred completely-independent-cold-storage are the addresses and their private keys stored encrypted in multiple places. But of course each client seems to only want to import in its own format. Which evolves.. (Multibit has evolved and now orhpaned my old wallets).

I understand a wallet is better than the address:key pairs (in coping with change addresses) so I'd be happy to have a portable wallet I could put into cold storage. But .. I also want to be able to read the damned thing myself. I'm happy to be responsible for my own encryption so that I have transparency of my own bitcoin.

So I guess what I'm asking is :

1. Do any of the clients allow export and import of wallets with the keys within them in readable form?
2. Am I off-base in my thinking?
3. What clients allow you to add a public / private key directly to their wallets?

Thanks..!

(Otherwise see you again when it passes 10K) :-)

Hey everyone,

Periodically (been a couple of years I think..) I check the contents of the addresses I have coin in. I store them in encrypted containers. I do this because over the longer term I want the the address details to be completely detached from the need to use any one client should it sease development. But I like to validate the keys and perhaps send coin between them. What's the best client which allows the closest to:

- importing many addresses and keys
- showing a list of the value of coins in each of those addresses
- moving coin between them without sending change to other addresses (which aren't backed up)

Thanks for your help!

Hey everyone,

I'm just opening up my old addresses and wanted to know what the subtle details of the usage are of multibit. Before I walk down the path of setting up the new multibit - is there somewhere which explains how it behaves with respect to change, and addresses?

I also have a couple of specific questions please.

In the last version I used (as at v 0.5.16)
- Multibit didn't allow me to see what was in an individual address. I had to use individual .key files per address so I could send from a specific address - and know which address it pulled the coin from.
- Multibit put the change from sending coin into another address in the wallet. The second address in the wallet - as a matter of practice. That would be ok because typically I would import a single address from private key and it would be the second address. But what does it do now?

I want to understand these sort of implications before using this or any client, not least because my keys are usually in cold storage. I don't want to lose change to an address which isn't permanently stored.

Thanks for any help!

I've created some addresses for storage - to be kept in encryped backup offline. They are in the format of the private key strings exported from multibit (a .key file). And I've now split them into individual files with one key in each. So there are a few xxxx.key files with the private keys which I can import into multibit when I need to move bitcoin from an address. I did this because multibit doesn't seem to allow sending or viewing the balance at the level of an individual address.

I understand that there is another address associated when installed - created with the new default wallet. So my question is: when I send the coin from that single imported address, will multibit put change into another address - which to that point I haven't backed up?

If so - what is the best way to use multibit to load cold individual storage addresses and transact with them?

I suppose I could just backup wallets for a similar purpose - but I like the security of human readable keys as the most portable format which I could potentially use with other clients later if necessary.

Thanks for any advice!

Hi all,

I have a new Sapphire HD 7970 Dual X I got a few days ago for my Windows 7 system.

Despite a lot of reading here and testing various mining and card options, I can't get more than 540 Mh/s out of it.

cgiminer (best I've tested)
"intensity" : "7",
"vectors" : "1",
"worksize" : "256",
"kernel" : "diablo"

Temperature = 67-68 degrees
Fanspeed = ~2400 - 2500 rpm
GPU Clock = 1000 Mhz (It won't go above that without a catalyst fault which then resets it to 950)
Running Catalyst 13.3 Beta though find them no different to the 13.1

Desktop remains very usable..

Now I've resigned myself to not getting above 1000 clockspeed - but I'd still expected more than 540Mh/s. I get around 390 from even my old 6970!

What variables are left to play with..?

I'm mining at around 400MH/s and I've only accumulated 0.01 in the last 24 hours with less than 1% rejected.

What do I need to look at?

The current and previous client are causing me a lot of trouble unfortunately.

The 7Gb blockchain needed to be all but re-done after not using the client for a year or more. It's taken 4 days - and I've downloaded much more than 7Gb plainly.

It seems firstly that you act as a node (I don't know if this can be changed) - but there are some messy aspects to it.

First - it destroys my connection. It saturates the upload channel (a little over 1Mbps). Nothing else works - I can't possibly leave it running ever - is this intentional?
Second, it isn't easily throttled. It uses both its own process bitcoin-qt AND 'system' - though this appearance of it being under 'system' may be a limitation of the utility I'm using (Netbalancer).

The questions I have are:

1. Do you have to act as a node?
2. Will future clients be such bandwidth hogs and so slow?
3. Why is there nowhere to download the blockchain (the only source I could find was ancient!)

I suspect it's a real problem, because I want to do my part, but I can't leave the current client running.

Can't find this anywhere..

I've moved PCs and now I cant get my former address to show up in the list with the newly installed client. I have set the client to point to a copy of the same wallet. What do I need to do?

I'm running the original bitcoin client with my wallet directory in an encrypted partition.
But whether I make that partition 100MB, 200 or 500MB the client eventually throws the Disk Space Low warning - and on acknowledging it exits.

Is this expected and should I be cleaning up files (aside from wallet.dat obviously) in the directory to stop the continuous creep?