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Re: importing a previously downloaded BTC blockchain in Bitcoin Core
"I don't trust phones. Even when offline they can still be connecting things like "find my phone". It's something I can't control, unlike an offline Linux PC."
--> I guess apple os are unix based, the find my phone can be switched off from the software, but ok I get the point
Ok thank you for the talk and advices, appreciate !
Re: importing a previously downloaded BTC blockchain in Bitcoin Core
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My usual anser is: "it depends". If you want to be absolutely sure no chain analysis company can access this data, you shouldn't use a public Electrum server. But considering Electrum's popularity, I don't think that's a concern to most people.
When you use Bitcoin Core, you can also reduce your privacy by linking different addresses together on-chain.
When you use Bitcoin Core, you can also reduce your privacy by linking different addresses together on-chain.
Ok thx, I will wigh the pros and cons
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I think it's about 1-2 GB download per week. But if you allow incoming connections so your node is also uploading, you can transfer much more data.
Ok thx, It gives me an idea
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As always, privacy comes at a cost. I wouldn't do it with less than 16 GB RAM, and memory consumption only gets worse in the future.
Yes, although I'm not planned to run the node continuously (I know it's better for the btc ecosystem) Quote
A quick search shows it's "an offline phone". I wouldn't risk my money on that.
Why not ? I mean the main question re security is having your key offline, isn't ? What would be your top 3 in terms of hardware wallet / storage ?
Re: importing a previously downloaded BTC blockchain in Bitcoin Core
" When you say "protect", do you mean protect against theft or protect your privacy? You could use Electrum over Tor. That still means the server can know which addresses belong to the same wallet, but it doesn't know who and where you are."
--> yes, about privacy, thanks for those precision, although I don't really know how "knowing which addresses belong to the same wallet" can be harmful or not
"If you set Bitcoin Core to prune when you first start it, it will prune on the fly. So if you prune to the minimum (550 MB blocks), it won't take more than ~15 GB in disk space (my current chainstate takes 12 GB). But syncing a pruned node is just as demanding as syncing a full node (in terms CPU, bandwidth, RAM and disk activity), so it takes a while."
--> didn't know that, on the fly space is 12 GB but data download is 720 Go anyway, isn't it ? How much is the blockchain update by month, once first pruned is ok, like 10 Go new data download ?
"Bitcoin Core is indeed more private, especially if you run it over VPN/Tor."
--> will try my best to go for it
"Plus hardware wallet? Depending on how much you're going to store, it's good practice to think about safety from the start."
--> you right, my complete set up would be : AirGap wallet + pruned node + Sparrow
Have you heard about AirGap ? I found it to be the best solution ever lol, and want to get rid about ledger hw (although it is said you can use personal node to convey tx)
Re: importing a previously downloaded BTC blockchain in Bitcoin Core
thanks for helping me taking a step back, I'm new to bitcoin from a technological perspective
I want to protect my transactions (tx), so I've heard that one of the best habit is to use its own server to protect its address and accounts from public information
Yes, my goal is to use pruning blockchain but I guess I still have to download the full blockchain at least once before the pruned node keep only the last ones.. (like 2 go)
I didn't know about light wallet such as Electrum, I will do some research to know if it can do the job I want
Re: importing a previously downloaded BTC blockchain in Bitcoin Core
Yes, it’s possible. Just copy the blockchain folders (blocks and chainstate) from your friend’s PC into your Mac’s Bitcoin Core data folder (~/Library/Application Support/Bitcoin). When you open Bitcoin Core, it will detect the copied data, verify it, and then continue syncing the remaining blocks. This way you don’t need to download the whole 700+ GB again.
thank you very much, I couldn't figure it out by myself,
unfortunately I don't have enough space in my main hd too... do you believe I can still go to the bitcoin core settings and change path (to external hd) ?
otherwise I will have to reconsider my plan..
Re: importing a previously downloaded BTC blockchain in Bitcoin Core
Hlw
Hey there mate! Yes, you can afaik. Another user made the same query in the this board! And this is what NotATether suggested earlier in that thread. You should give it a try and I believe it would fix that problem of yours with Bitcore core and the internet! Quoting it here again for better visibility, in case u missed it! Hope that helps!
thanx, i will have a look
importing a previously downloaded BTC blockchain in Bitcoin Core
Hello
I want to run a BTC node (on my MAC) but I don't have the requested internet data plan to download the full blockchain (720 Go) in a row...
So I have to ask first a friend to download the BTC blockchain for me (no security issue there, it will be fine) on his Windows PC.
My question : can I import this previously downloaded blockchain easily in my Bitcoin core app, from a external hard drive, and start synchronization from there ?
I want to run a BTC node (on my MAC) but I don't have the requested internet data plan to download the full blockchain (720 Go) in a row...
So I have to ask first a friend to download the BTC blockchain for me (no security issue there, it will be fine) on his Windows PC.
My question : can I import this previously downloaded blockchain easily in my Bitcoin core app, from a external hard drive, and start synchronization from there ?