I have updated my mac wallet to 1.9.7 and some addresses vanished   How can I get them back??! They are there. On the receive tab look under "used" |
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So you never know? It just picks randomly?
Well no. Not all addresses have coins in them so it picks from the ones that do. Also it tries to minimize small amounts of change and it favours older coins over newer ones. If you want greater control over which address is used you can get that. With bitcoin-qt you need a special version called coin control. Electrum has coin control built in. Don't know about the other wallets. |
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Which would mean if I received coins at number 496 then lost my wallet, all my coins would be recoverable if I have my seed. Is this correct?
Yes. |
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Too late though isn't it? What with scrypt asics doing 3Mh/s while consuming less than 100W.
Not really. 1) GPU != scrypt. People with scrypt ASICs are stuck with scrypt PoW, GPU miners are not. 2) Scrypt ASICs doing 3 Mh/s cost ~$2500 upfront, and they are not "in hand". 3) Power usage per se does not matter up to a point, what matters is it's cost. 100W is interesting to who pays $0.3 per KW/h, way less to who pays just $0.05 4) GPUs still have resale value after 1 year, or one can actually keep 2 or 3 for a gaming PC 1) I'll give you that. 2) They are in hand and shipping and no one is getting GPUs on credit either. Also do the math and you'll see that a 3Mh/s GPU rig is going to cost about the same. 3) Most people don't pay $0.05. In most parts of the world it is at least $0.15. If you do the math you'll find that power usage matters. 4) Not everyone's a gamer. The lower power usage of ASICs means that they will be profitable for longer. A year easily. The scrypt asics we see now are just the start. 3-6 months down the road GPUs will become uncompetitive as far as scrypt hashing goes. |
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I bought coins from Intersango in June 2012 and I can see them in a wallet but no idea how i made the wallet and can't find key as new computer somehow didn't retain. Are they lost forever?
What bitcoin client are you using? |
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hi, its an old cookie but how can you have multiple wallets on one machine?
step by step guide would be nice.
thanks
You can have multiple wallets in two data directories. So: - copy your existing data directory to a new one. https://en.bitcoin.it/wiki/Data_directory- delete the wallet.dat file in it - run bitcoinqt/d with the datadir option pointing to the new directory and a different port: bitcoin-qt -datadir=<dir> -port=8334 https://en.bitcoin.it/wiki/Running_Bitcoin- It will create a new wallet for which you should set a password. - create a shortcut for the above command. It would be even easier if you used a client other than bitcoin-qt. Electrum, multibit, armory all support multiple wallets. |
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Unless you really believe in them its probably just better to pump and dump. Dogecoin is forever though.
Doge is just a litecoin clone with an adorable icon.... IMHO, it will stay for a while, but not forever... Litecoin has a limit to the number of coins that can be mined. 84 million is that limit. dogecoin has no such limit. |
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Thanks for your rapid reply, yogi!
Then here's another question:
I've read that some people on MtGox are waiting on payouts for months now.*
But that particular "payout problem" seems to have been only about US fiat payouts. Why or how were people continuing to trade, when there was a payout problem for such a long time?
This is well known to those of us that frequent the forum. The answer to your question is we don't know. I can speculate though: In my experience most bitcoin owners don't frequent this forum and things that are common knowledge here are alien to them. So these were the people trading on Mt. Gox. Proof of this is the fact that the MSM had been quoting Gox prices up until the latest crisis. Even the fact that fiat withdrawals were blocked for months didn't filter through to them. |
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Too late though isn't it? What with scrypt asics doing 3Mh/s while consuming less than 100W.
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Using the classic window click on the red/green icon in the bottom right. Select a different server.
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Then you look for the next one in the sequence.
This is the part I don't understand. Does my seed simply signify the start of an infinite, specific sequence of addresses? Such that if I start from address 1 and generate up to address 100... I could delete my wallet and the seed would create that exact same sequence again? Yes. You can also independently generate all addresses with just the master public key. You will only get the addresses + public keys not their private keys so you won't be able to spend the coins sent to those addresses. But you can create a watch only wallet using the master public key. To be more clear, is it already determined what the 500th address/key pair in my electrum wallet will be? (based on my seed)
Already determined by whom? This sounds like a philosophical question  Private keys are basically really, really large numbers so they all already exist in that sense. The security stems from the fact that finding private keys with coins in them is hard because of the large number of possible keys. Anyway your wallet doesn't calculate the 500th key until it needs to (say because you've received coins at number 496) or you tell it to. |
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LOL what is this language called "Indian"?
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you're likely not going to save much bandwidth by compressing it. I did a quick test with lmza2 and the compression ratio was only 67%
I am glad to know you don't have the problem to spare such bandwidth, but I do. Still any useful advice is highly appreciated. Well let's see. I believe the download is 13GB? I think you'll need at least as much to compress it and 500MB-1GB for the OS. So please rent a VPS or cloud server with 30GB disk space, install rtorrent to download the uncompressed version. VPS have faster connections than home/office systems so the download should be done in a few hours. Compress the file and download it to your home/office system via http or ftp. If you can contribute by setting up a seedbox + torrent of the compressed version then that would be great too but obviously not required for your purposes. You can find cheap VPS on lowendbox.com |
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conroe64 it seems to me what you are suggesting is multiple wallets. A hot wallet that holds small amounts and a cold wallet that has the rest. The cold wallet could be a multisig implementation where multiple people hold the private keys and all or most of them have to cooperate to sign a spend transaction.
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How does your mediation service work? Specifically:
- Does your 1% fee apply to every transaction or only those transactions involving disputes?
- bitrated has a field where you can enter a transaction agreement or contract that specifies, among other things, what the modes of payment will be and what proof of payment must be provided in the event of a dispute. There is no such field on coinb.in. So how would you decide what to do in the event of a dispute?
Hey, As it stands, the 1% fee would only be applied to those transactions involving disputes. Most users here seem to make an agreement and sign it with their PGP key in the event a dispute arises, a few other users will get in touch first. Saying that, I suppose a possible solution could be to have users create a message/agreement and sign it (in the browser) with their corresponding private key and then that could be used by the mediator if their is a dispute. Do you have suggestions or preferences yourself? (or anybody else?) Easiest solution would be that the buyer and seller come to an agreement and email it to you. You verify receipt by replying with a quote. Multisig is hard enough as it is. I think if you asked people to sign messages with private keys they would just blank out |
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How does your mediation service work? Specifically:
- Does your 1% fee apply to every transaction or only those transactions involving disputes?
- bitrated has a field where you can enter a transaction agreement or contract that specifies, among other things, what the modes of payment will be and what proof of payment must be provided in the event of a dispute. There is no such field on coinb.in. So how would you decide what to do in the event of a dispute?
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But isn't it true that if a transaction is modified once might never get a transaction confirmation? If the modified transaction gets confirmed the original never will be as it'll be considered double spending?
Only the transaction ID can be modified. Not the inputs nor the outputs. The coins are always going to go where you intended them to go. So just wait for confirmation and you'll be ok. |
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thanks barak... edit - a matter of fact i did this the first time i downloaded electrum should i do it again, i wrote down the seed and password when i first did it.
A seed backup is for life but I suggest backing up the wallet file too because it contains address labels that aren't represented by the seed. Then go ahead and upgrade. Worst comes to worst you will have to restore from seed which is easily done. |
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I think the core devs could expand the 21 mio coin limit, if they want. They basically control the Bitcoin Foundation, this forum, alot of mining power, if they update the client >95% would update to this client with new limit.
I think you are wrong about that. I'd be surprised if 40% update to a client with a new limit. I know I wouldn't, would you? They could sneak in changes. For example make the client self-updating and a few versions later release this change in the upper limit of coins. The change will propagate instantly to users around the world. 1. The program is open-source. The whole world can check developpement code (and a lot do) and would notice it even before it is deployed. 2. I would be surprised if they ever implement auto-updating because many would feel that it would be a possible attack vector. 3. Even if they ever made auto-update, and some evil developper bypassed the normal procedure to "push" an update in which he would have secretly changed the block generation rules, it would not be long people would notice the change. The most likely thing that would happen then would be that people revert to the old version. The old version considers invalid the new blocks, and starts mining at the last "old" block, thus forking the chain. But after a few hours/days max, the "old" chain gets longer than the "new" one, and the changes are reverted. Open source does not mean that it is accessible to ordinary users. Most people don't know C++ and can't understand the code. Auto updating would be a welcome feature for most users. Sort of like OTA updates available on android phones. The way I look at it is package managers were once looked at with hostility in the linux world but now people recommend using your distro's repos vs. installing from source. The point I'm trying to make is that you can always count on user inertia. Ordinary users don't frequent this forum. Just look at how many were caught unawares by the recent Mt. Gox problems even though it's been brewing for months and there's this huge thread about it in the service discussion forum. |
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