Scaling and block size
51 writings, oldest first
- Cryptography mailing list (metzdowd)
Bitcoin P2P e-cash paper
Long before the network gets anywhere near as large as that, it would be safe for users to use Simplified Payment Verification (section 8) to check for double spending, which only requires having the chain of block headers, or about 12KB…
- Cryptography mailing list (metzdowd)
Bitcoin P2P e-cash paper
Ray Dillinger wrote: Right, it's ECC digital signatures. A new key pair is used for every transaction. It's not pseudonymous in the sense of nyms identifying people, but it is at least a little pseudonymous in that the next action on a…
- Cryptography mailing list (metzdowd)
Bitcoin P2P e-cash paper
James A. Donald wrote: I mean a node only needs the pending-tx pool for the best branch it has. The branch that it currently thinks is the best branch. That's the branch it'll be trying to make a block out of, which is all it needs the…
- Private email (Dustin Trammell)
Re: Bitcoin v0.1 released
There's at least one node who's inbound IP keeps changing all the time within the same class B. Maybe every time the program is run. I wasn't expecting that. Do you mind if I CC the rest of this to bitcoin-list or Cryptography? BTW,…
- Private email (Dustin Trammell)
Re: A few thoughts...
I group attacks into two classes: 1) Attacks that can only be done by someone actually in the chain of communication 2) Attacks that can be done by anyone on the Internet from anywhere Type 1 exposes you to people in your house or company…
- Cryptography mailing list (metzdowd)
Bitcoin v0.1 released
I would be surprised if 10 years from now we're not using electronic currency in some way, now that we know a way to do it that won't inevitably get dumbed down when the trusted third party gets cold feet. It could get started in a narrow…
- Private email (Dustin Trammell)
Re: Bitcoin v0.1 released
I would be surprised if 10 years from now we're not using electronic currency in some way, now that we know a way to do it that won't inevitably get dumbed down when the trusted third party gets cold feet. It could get started in a narrow…
- Private email (Dustin Trammell)
Re: Bitcoin v0.1 released
I would be surprised if 10 years from now we're not using electronic currency in some way, now that we know a way to do it that won't inevitably get dumbed down when the trusted third party gets cold feet. It could get started in a narrow…
- bitcoin-list (SourceForge)
Re: [bitcoin-list] Bitcoin v0.1 released
I would be surprised if 10 years from now we're not using electronic currency in some way, now that we know a way to do it that won't inevitably get dumbed down when the trusted third party gets cold feet. It could get started in a narrow…
- P2P Foundation forum
Bitcoin open source implementation of P2P currency
I've developed a new open source P2P e-cash system called Bitcoin. It's completely decentralized, with no central server or trusted parties, because everything is based on crypto proof instead of trust. Give it a try, or take a look at…
- P2P Foundation p2p-research list
[p2p-research] Bitcoin open source implementation of P2P currency
I've developed a new open source P2P e-cash system called Bitcoin. It's completely decentralized, with no central server or trusted parties, because everything is based on crypto proof instead of trust. Give it a try, or take a look at…
- bitcoin-list (SourceForge)
Re: [bitcoin-list] Bitcoin v0.1.5 released
Hal Finney wrote: The current version will work fine. They'll each connect over the Internet, while incoming connections only come to the host that port 8333 is routed to. As an optimisation, I'll make a switch "-connect=1.2.3.4" to make…
- Private email (Mike Hearn)
Questions about BitCoin
Hi Mike, I'm glad to answer any questions you have. If I get time, I ought to write a FAQ to supplement the paper. There is only one global chain. The existing Visa credit card network processes about 15 million Internet purchases per day…
- Private email (Mike Hearn)
Questions about BitCoin
Mike Hearn wrote: My best guess - it is the length of the global chain, and the rapid advance at the start is as the software downloads and verifies the preceding blocks in the chain as being valid. Right. I'm trying to think of more…
- Private email (Mike Hearn)
Questions about BitCoin
The list is: bitcoin-list@lists.sourceforge .net Subscribe/unsubscribe page: http://lists.sourceforge.net/m ailman/listinfo/bitcoin-list Archives: http://sourceforge.net/mailarc hive/forum.php?forum_name= bitcoin-list I'll always announce…
- Private email (Martti Malmi)
Re: Bitcoin
mmalmi@cc.hut.fi wrote: That would be great! I added you (dmp1ce) as a dev to the sourceforge project and gave you access to edit the web space and everything. Definitely. This will be an absolutely essential feature once things get…
- Private email (Martti Malmi)
Re: Linux build
It was almost there. I fixed a few things and got it to finish compiling but I don't know the system libraries to link to so there's undefined references galore. I changed the makefile to look for things under /usr/local and in their…
- Private email (Martti Malmi)
Re: Linux build ready for testing
In the debug.log, it requests the block list, receives the block list, then begins uploading the list of blocks requested. It doesn't receive the blocks, but it didn't run long enough for me to be sure it would have had time yet.…
- Private email (Martti Malmi)
Re: Forum
That's a good idea to go in a more web-publishing CMS type direction like Drupal. That's a better fit and can produce a better looking website than a wiki. I think I was wrong about wiki. Only a few specific people will do any website…
- Private email (Martti Malmi)
Re: Forum
mmalmi@cc.hut.fi wrote: Another issue I thought of with zetaboards: most free forum sites won't let you export the user account database if you want to move. I don't know why I don't see any other software projects using a free forum, but…
- Private email (Martti Malmi)
Re: Bitcoin.org
mmalmi@cc.hut.fi wrote: That's strange, I've seen Firefox 3.5 on XP anti-alias large fonts. Well anyway, your way is safer. I changed it back to text for now though so I can keep tweaking the colours. Drupal puts the <span> tags and junk…
- BitcoinTalk
Re: A few suggestions
Mac support would be nice. wxWidgets really pays off for cross platform. Please don't try PPC. PPC is big-endian and Bitcoin is little-endian, there would be endless endian bugs making it harder for me to debug the network if there's a…
- BitcoinTalk
Re: A newb's test - anyone want to buy a picture for $1?
The recommended ways to do a payment for an order: 1) The merchant has a static IP, the customer sends to it with a comment. 2) The merchant creates a new bitcoin address, gives it to the customer, the customer sends to that address. This…
- Private email (Martti Malmi)
Exchange options
Don't rush ahead and get yourself rejected from all the payment options before you've had time to see if there's a better approach. I suggest you wait before contacting any more payment processors. You may get ideas from things other…
- Private email (Martti Malmi)
Re: Exchange options
Maybe the current difficulty of buying LR is already the limit of how easy it can get in that direction. Every conventional payment method has refutability as their way to cope with their lack of passwords and crypto. The system is wide…
- BitcoinTalk
Re: Repost: Request: Make this anonymous?
When you send to a bitcoin address, you don't connect to the recipient. You send the transaction to the network the same way you relay transactions. There's no distinction between a transaction you originated and one you received from…
- BitcoinTalk
Re: Make your "we accept Bitcoin" logo
No, sorry. I've been meaning to redo it. The largest icon that still looks good is the 20x20 one which is used for the tray icon in GNOME. Any larger than that looks bad. The 16x16 and 20x20 ones have quite a bit of hand tweaking to get…
- BitcoinTalk
Re: Setting up multiple bitcoin machines behind NAT
Right now there isn't a port number setting to do that. It's a feature yet to be implemented. You can only set up your NAT to port-forward to one of the computers. (I said something earlier about NAT port translation, but that wouldn't…
- BitcoinTalk
New icon/logo
New icons, what do you think? Better than the old one? Full size 530x529 image for scaling down to custom sizes: http://www.bitcoin.org/download/bitcoin530.png The perspective shadow was too thick on the larger sizes. I updated 32, 48 and…
- BitcoinTalk
Re: New icon/logo
I don't know how to do SVG, but I did the original very large, over 500 pixels across, so it can be scaled down. I'll give the original when I'm finished. I had to custom tweak each icon size so the vertical lines land square on their…
- BitcoinTalk
Re: New icon/logo
We have the standard icon sizes, and the full size scales nicely to anything else. I added the full size to the first post.
- BitcoinTalk
Re: Money Transfer Regulations
When there's enough scale, maybe there can be an exchange site that doesn't do transfers, just matches up buyers and sellers to exchange with each other directly, similar to how e-bay works. To make it safer, the exchange site could act…
- BitcoinTalk
Idea for file hosting and proxy services
When you want to upload an image to embed in a forum post, there are services like imageshack, but because they're free, they limit the number of views. It's a minuscule amount of bandwidth cost, but they can't just give it away for free,…
- BitcoinTalk
Re: Idea for file hosting and proxy services
Mihalism Multi Host is a popular open source PHP file hosting server. It's geared toward image hosting, but I think by increasing the file size limit and liberalising the allowed file extensions, it could just as easily be used for…
- BitcoinTalk
Re: Ummmm... where did my bitcoins go?
It's not the download so much as verifying all the signatures in all the blocks as it downloads that takes a long time. How long is the initial block download typically taking? Does it slow down half way through or is about the same speed…
- Private email (Martti Malmi)
0.3.0 rc1 quickie download link
If bandwidth is a problem, delete my link in the "0.3 almost ready" thread. I just don't want to upload it to sourceforge for a quickie share for a day or two, possibly taking it down immediately if there's a bug. Sourceforge has a policy…
- BitcoinTalk
Bitcoin 0.3.2 released
Download links available now on bitcoin.org. Everyone should upgrade to this version. - Added a simple security safeguard that locks-in the block chain up to this point. - Reduced addr messages to save bandwidth now that there are plenty…
- BitcoinTalk
Re: Scalability and transaction rate
The current system where every user is a network node is not the intended configuration for large scale. That would be like every Usenet user runs their own NNTP server. The design supports letting users just be users. The more burden it…
- BitcoinTalk
Re: Flood attack 0.00000001 BC
Bitcoin isn't currently practical for very small micropayments. Not for things like pay per search or per page view without an aggregating mechanism, not things needing to pay less than 0.01. The dust spam limit is a first try at…
- BitcoinTalk
Re: Flood attack 0.00000001 BC
Forgot to add the good part about micropayments. While I don't think Bitcoin is practical for smaller micropayments right now, it will eventually be as storage and bandwidth costs continue to fall. If Bitcoin catches on on a big scale, it…
- BitcoinTalk
Re: Flood attack 0.00000001 BC
It would be nice to keep the blk*.dat files small as long as we can. The eventual solution will be to not care how big it gets. But for now, while it's still small, it's nice to keep it small so new users can get going faster. When I…
- BitcoinTalk
Re: Potential disaster scenario
Some places where generation will gravitate to: 1) places where it's cheapest or free 2) people who want to help for idealogical reasons 3) people who want to get some coins without the inconvenience of doing a transaction to buy them…
- BitcoinTalk
Re: Development of alert system
It can't do arbitrary actions remotely. Maybe some of you are responding to other posters who suggested the alert system should do more? If there is an alert, the following json-rpc methods return an error: sendtoaddress getbalance…
- BitcoinTalk
Re: Version 0.3.13, please upgrade
Code: diff -u old\main.cpp new\main.cpp --- old\main.cpp Sun Oct 03 20:57:20 2010 +++ new\main.cpp Sun Oct 03 20:57:54 2010 @@ -2831,6 +2831,10 @@ bool fUseSSE2 = ((fIntel && nFamily * 10000 + nModel >= 60026) || (fAMD && nFamily * 10000…
- BitcoinTalk
Re: [PATCH] increase block size limit
+1 theymos. Don't use this patch, it'll make you incompatible with the network, to your own detriment. We can phase in a change later if we get closer to needing it.
- BitcoinTalk
Re: [PATCH] increase block size limit
It can be phased in, like: if (blocknumber > 115000) maxblocksize = largerlimit It can start being in versions way ahead, so by the time it reaches that block number and goes into effect, the older versions that don't have it are already…
- BitcoinTalk
Re: RFC: ship block chain 1-74000 with release tarballs?
It's not the downloading that takes the time, it's verifying and indexing it. Bandwidthwise, it's more efficient than if you downloaded an archive. Bitcoin only downloads the data in blk0001.dat, which is currently 55MB, and builds…
- BitcoinTalk
Re: RFC: ship block chain 1-74000 with release tarballs?
I tested it on a slow 7 year old drive, where bandwidth and CPU were clearly not the bottleneck. Initial download took 1 hour 20 minutes. If it's taking a lot longer than that, certainly 24 hours, then it must be downloading from a very…
- BitcoinTalk
Re: BitDNS and Generalizing Bitcoin
Piling every proof-of-work quorum system in the world into one dataset doesn't scale. Bitcoin and BitDNS can be used separately. Users shouldn't have to download all of both to use one or the other. BitDNS users may not want to download…
- Private email (Mike Hearn)
More BitCoin questions
By the way, if you didn't see it already, there's a discussion on the security of secp256k1 on the forum: http://www.bitcoin.org/smf/ind ex.php?topic=2699.0 Hal (i presume this is Hal Finney) Yes, it's him. He was supportive on the…
- Private email (Mike Hearn)
Open sourced my Java SPV impl
See these threads: http://www.bitcoin.org/smf/ind ex.php?topic=1786.msg22119#msg 22119 http://www.bitcoin.org/smf/ind ex.php?topic=2181.msg28729#msg 28729 I see. So right now fees are tricky because you have to decide up front what the…
