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Right, repeated hashing is way better than what I said.
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i am trying to trace a transaction. can anyone tell me what block i can explore.
the time of the transaction was 4:53am UTC on jan 11th.
It's a lot easier to be sure with other info like the receiving address. |
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Given the easy and irreversible nature of Bitcoin transactions I sometimes worry about being coerced into giving up my stash. Leaving them in someone else's control is not a good solution, and the way most are set the attacker would just demand whatever it is I use to get access.
It would be good to put my funds behind some work. The first thing that comes to mind is forgetting/hiding from myself the last ~5 chars of an encryption password. Then the attackers have the trouble of keeping me for a day or whatever and don't know immediately if I've lied to them about the known part. Of course they might just think I'm lieing about the whole thing in which case I might as well be.
My idea is also weak because they will know when they've searched the whole space, it would be better to have average time of a day, but not evenly distributed so they'd only know for sure after whatever length of time I was willing to maximally wait to get to my funds normally.
This also helps against drunk shopping and gambling and gifting. Different funds could be under different time locks as appropriate. Really, a setup where 1% of funds become available every hour might work well.
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The question now is, can a quantum computer compute a valid keypair for an account which has never been used to transfer money (only received money) i.e. the public key is not know on the net? In other words, would using an account that has been used only once, to transfer the bitcoins to it, provide protection even if ECC is cracked?
Well, as soon as bitcoins are sent to an address, that public address appears on the blockchain. So if someone were just grinding through the blockchain and trying to get at all addresses with funds still in them, they would eventually hit on any such savings account. There is a difference between public key and bitcoin address. The bitcoin address is shown when funds are sent, but the public key is not shown until funds are sent from the address. A bitcoin address is a hash of a public key with checksum added. |
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That is a typical transaction. It used two of your received transactions which totaled more than the intended amount. Since it has to use them completely it sent what you didn't want to pay back to yourself at a new address your client made for you, we call it change.
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Just sent you an e-mail sir.
Awesome, I replied. |
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The quest doesn't cost much if anything, and you can get free chips from the soldiers to start. But it might take some time, and there are only 3 full days so try it soon.
There is 15BTC in each tournament and only about 10 players qualified for each so far.
If you need help navigating or figuring out the games there are lots of helpful players around.
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It happens to start around the time I got here, but it's amazing to think how much came before that. Bitcoin was public for what 1.5 years already? I wonder when the first thoughts came into Satoshi's head? When did he know he could do it? |
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It's crazy (and probably bad on several levels) how meaningful this is to me.
Still cannot believe it got down to $2. It took a lot of discipline for me not to lever up at $5.
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Very cool. I put up a Seals ad too.
Do you want minor bug/improvement reports here or somewhere else?
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Heh, I'm going to put this bucket on my head to prove a bucket is something you wear and not something you put lobster in.
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Is that 1.1M unique twitter users? If so, wow.
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I think this problem is my fault from speaking about 'the' firstbits of an address by which I mean the shortest, but maybe we need a different word of the longer ones.
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As an example all of following firstbits (or call them "prefixes") will lead to the 1Locus7cPi1wGYAnKuXAR2dWTP2BSdqvyJ: 1locus7, 1locus7c, 1locuscp, ... So what the firstbits of 1Locus7CPi1wGYAnKuXAR2dWTP2BSdqvyJ (capital C) be? Addresses not in the chain don't have a firstbits. You can ask what it would be if it was added now, but that's dangerous to start talking about and working with because you don't know what else is in the same block for example. |
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I don't understand why both 1locu and 1locus resolve to 1LocUS4PUJeRSbR5ekySXEM4qMBT3xemp7. How can an address have multiple firstbits? why is 1Locus7cPi1wGYAnKuXAR2dWTP2BSdqvyJ not 1locus?
We do seem to be using different alogorithms, I have renamed them on blockchain.info.
A firstbits address returns the first appearance of itself, that's it. The best reason for doing it like that is that people using more length than necessary (for safety or vanity) won't get burned. |
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Unless there is a re-org a firstbits address will never change.
When you enter a firstbits address we find the earliest address that starts with it. Lower block number is earlier and inside of a block it's whichever comes first in the raw data.
When you enter a bitcoin address we look at all addresses in the chain (which you could also call "all addresses appearing before yours") to see how long of a starting string from your address is required to differentiate it from all others. Later additions will not affect it.
I'm sorry for the confusion. How can I improve the explanation on firstbits.com/about.php?
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...me making the call to the cab company and sending the Bitcoins on my computer....
how will you know his bitcoin address... I hope you wont have him spell out the address on the phone! here is my solution: http://www.thebitcoinreview.com/site.php?site_id=825I'll need his company phone number & bitcoin address. I'm sure there is lots of other information he will want to put up on this listing. like his exact location or service area, I could throw in a google map. i know it looks shitty... thebitcoinreview.com is in desperate need of a make-over, and its coming soon! In the mean time any publicity is good publicity  Or http://www.thebitcoinreview.com/site.php?site_id=731 |
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Is it feedzebirds? lol
No, not nearly as cool. |
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Having worked with twitter before is not absolutely necessary, I think my idea will be easy to implement.
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Heh, $74k wants to buy at one cent. Cheap Gox hack 2.0 bets?
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