Be aware that to create an unsigned transaction you'll datadir to be running Bitcoin-Qt or d and the blockchain must be synced. Submit text NOT about price. Do this while Bitcoin - Qt is bitcoin-qt running. Don't know which ASIC miner to buy? An offline Armory installation that signs transactions An online, watch only, Armory installation that creates unsigned transactions, and broadcasts signed transactions. No mining contract referral bit. It is the same data folder as the non- QT multi of the standard client used to use:
MultiBit doesn't support this kind of cold storage in any form accessible to most users. Just disconnect and never connect again before starting Armory offline and creating your first offline wallet. Sat, 3 Feb This is usually far faster than doing the normal initial sync over again. Welcome to Reddit, the front page of the internet. Of course, if you encrypted the wallet.
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This bit was last modified on 19 Novemberat Submit a new datadir post. Submit text NOT about price. Windows Bitcoin-qt should show multi folder containing other folders such as Contacts and Desktop. Similar setup is possible with Electrum, with the advantage of faster syncing, no Bitcoin-Qt requirement, and no full blockchain.
Yeh it seems that Armory is the better choice, and Im going through the learning curve of how to set up the optimal implementation, but have trouble working out how to do this without having the pc with the wallets never touch the internet. I have the separate offline PC- any good resource where I can read up on how to properly implement this over the two pcs?
Check out this tutorial. I was just working my way through that site but hadnt gotten to that page yet. One more though, if I may? For the Armory online PC, what function does the bitcoin qt and dling the whole blockchain play? As far as I understand it it doesnt make me a miner, so why do I need the whole lot? One more thing - get the latest Armory beta from here. This way Armory 'outsources' all the security of the reference client regarding interactions with the blockchain.
Bitcoin-qt doesn't make your computer a miner. It'll take a lot of resources initializing but after its up and synced, it reduces its memory footprint to about MB, and disk usage to about 17GB.
If you don't need the wallet features of bitcoin-qt Armory doesn't , you can disable that part of the wallet by adding the line:. Sounds like that will do the job.
Im infinitely more worried about the security of my coins rather that the resources the software uses. I can recommend Armory support too. Emails are usually answered within an hour or two, and issues get resolved quick. If you go with Armory, what are the specs of the online computer 2 above?
Be aware that to create an unsigned transaction you'll need to be running Bitcoin-Qt or d and the blockchain must be synced. That requires a relatively beefy machine. Similar setup is possible with Electrum, with the advantage of faster syncing, no Bitcoin-Qt requirement, and no full blockchain. Use of this site constitutes acceptance of our User Agreement and Privacy Policy. Log in or sign up in seconds. Submit link NOT about price. Submit text NOT about price. Bitcoin subscribe unsubscribe , readers 20, users here now Bitcoin is the currency of the Internet: You can also explore the Bitcoin Wiki: Only requests for donations to large, recognized charities are allowed, and only if there is good reason to believe that the person accepting bitcoins on behalf of the charity is trustworthy.
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Welcome to Reddit, the front page of the internet. Become a Redditor and subscribe to one of thousands of communities. This is an archived post. You won't be able to vote or comment. Can you guys help me choose between Armory and MultiBit? The data here is necessary for validating new incoming blocks and transactions. It can theoretically be rebuilt from the block data see the -reindex command line option , but this takes a rather long time.
Without it, you could still theoretically do validation indeed, but it would mean a full scan through the blocks GB as of Nov for every output being spent. You can see blocks as 'patches' to the chain state they consume some unspent outputs, and produce new ones , and see the undo data as reverse patches.
They are necessary for rolling back the chainstate, which is necessary in case of reorganizations. This section may be of use to you if you wish to send a friend the blockchain, avoiding them a hefty download. The database files in the "blocks" and "chainstate" directories are cross-platform, and can be copied between different installations. These files, known collectively as a node's "block database", represent all of the information downloaded by a node during the syncing process.
In other words, if you copy installation A's block database into installation B, installation B will then have the same syncing percentage as installation A. This is usually far faster than doing the normal initial sync over again.
However, when you copy someone's database in this way, you are trusting them absolutely. If an attacker is able to modify your block database files, then they can do all sorts of evil things which could cause you to lose bitcoins. Therefore, you should only copy block databases from Bitcoin installations under your personal control, and only over a secure connection.
Each node has a unique block database, and all of the files are highly connected. So if you copy just a few files from one installation's "blocks" or "chainstate" directories into another installation, this will almost certainly cause the second node to crash or get stuck at some random point in the future. If you want to copy a block database from one installation to another, you have to delete the old database and copy all of the files at once.