mmmm

Might have need of that.

State instigated Psychological Warfare waged via the media

Innocent until proven Guilty in Court by a Jury of your Peers 
with the option for an appeal(s)

Or trial by media, internet and Mob rule.

Take your choice people.

It doesn't matter if there are only 21 Million coins because they are divisible.
Bitcoin doesn't encourage hoarding, it encourages sensible spending.
Our current financial model is.....I want that Aston Martin today....I dont have the money, I'll get a loan

With Bitcoin the model is, I have the money today  or If I just wait two years, the Price will go up and
I'll be able to buy the car AND have some bitcoin left.

Bitcoin, being deflationary Encourages sensible spending, rather than hoarding.
I imagine everyone on here has bought stuff with Bitcoin.

I'd like to see it hardened against rainbow table attacks so Brainwallets are less risky.

Would the easiest way to do this be with a website like bitaddress.org implementing this hardening clientside.

something like   Sha256(bcrypt(Passphrase))

Brainwallet coin
MemoryCoin
Headcoin


A cryptocurrency that promotes the use of Brainwallets, but hardened against attack by rainbowtables

The ability to store wealth in your head with a Pass phrase has got to be a big plus with
Cryptocurrencies.

Although it can be done with Bitcoin, it is weak in that the Sha256 hash function is vulnerable to
rainbow table attacks.

A crypto that addressed this issue would offer significant advantages to people wanting to secure some of their wealth, providing
they were willing to accept the responsibility for memorising their passphrase.

Could Bitcoin be altered so that it utilised bcrypt, maybe Brain wallet services like Bitaddress.org could be modified to use the function

Sha256(bcrypt(Passphrase))

Is that the simplest way of hardening the use of Brainwallets.

Could bitcoin be modified to harden BTC Brainwallets from attack or would it require another coin.

I have been looking into some features like the ability to delay payments. In principle, transactions have a lock time that can be used to delay transactions.


I've been interested in this too, there seems to be a way for semi noobs like myself to implent, but I wouldn't dare try it with real Bitcoin.
Some posters seem to say yes Locktime is supported other answers suggest no, or that its difficult/unreliable.

Here's a link to a site that seems to show how to do it

http://brainwallet.org/#tx

Brainwallets are a Great idea but the concerns are of course legitimate.
How many people are there in the world that might want to hide money, from Govt ( or an ex wife ) in their head.
The Market potential is huge.

Could Bitcoin have been made to utilise a slower Hash function like Bcrypt instead of Sha256
Could Bitcoin be altered to use something like Brcypt which would slow down brainwallet mining and presumably
make precompiled rainbow tables too inefficient.

A future cryptocurrency or Bitcoin update ought to cater for hardening Brainwallets against attacks.

What's wrong with (Sha256(Bcrypt(PassPhrase)))

People shouldn't have to post their private lives to try to defend their innocence.
If people think someone has broken the Law.
Report it to the police,    anything else is heresay and malicious speculation.
If and Until they are convicted in a court of Law, they are Innocent.

You can buy cheap computers for $20, maybe even use Raspberry Pi with a Hard drive as nodes.
Why can;t we have Sw to use up old Equipment to run as nodes,
I suppose we can, but how do we do it, using up spare  bandwidth of our main PC.

Blocks are surely just hashed transactions, IE data.
Why can't a node only download, for example, only blocks that begin with 'A' as the first Alphabetic Char.
That would chop the Blockchain up into 26 Pieces.
52 if we use uppercase and lowercase.
And if we made it two Chars, it would chop the blockchain up 52 x 52 which is. 2704 so our 20Gb Blockchain is now a few Mb.

I suppose the reason why this wont work is because, If my node only has Blocks beginning 'AH' (for example ) the transaction we wish to verify may need to be verified against transactions contained in other blocks beginning 'VW' (for example) and so I can't verify that transaction because my node doesn't store those blocks.     
So, I've chopped up the blockchain into much more manageable and decentralised portions,
but now I don't know where all the data is I need to verify my new transaction.

Is there a solution to this ?

Isn't there some way of limiting blockchain download so that each node only need download a portion. It's so obvious that it must be what you developers are working on.

If the Blockchain is to be handled by miners or other limited users, then, Bitcoin becomes centralised and open to attack as any centralised entity.  How about Clients only acting on 3 first characters worth of the Blockchain, randomly. IE, My client will only process transactions that begin with XYZ........ If this were hidden from users and done randomly, there'd be no way for anyone to know who was veryfying what portions of the Blockchain  and the blockchain would then itself effectively be decentralised.     So, the idea is, have each client only download transactions that begin  XYZ and will only verify transactions that begin XYZ.

It only means that when you send Bitcoin, the transaction sends out a verification request......ahhh, but how does it know where to send the request....
It would have to trawl the entire net to find a node that will verify it's XYZ transaction, and so would slow down verifications. 
And so Ideally, Any node should be able to verify a transaction, but of course it can't, because it doesn't have the entire blockchain.  (why do I get the feeling I'm painting myself into a corner here) 
What about then, if when you boot up the client it actively seeks out only those nodes which will deal with and verify XYZ transactions. It might mean a sync delay initially while it finds enough XYZ nodes to verify your transaction but once it's found them, anyway, My thoughts on the Blockchain size problem.   A distributed Blockchain, I'm sure that's what they are working on anyway since it's obvious so I've just wasted 5 minutes of my (and your ) life,       sorry about that       

If the Blockchain is to be handled by miners or other limited users, then, Bitcoin becomes centralised and open to attack as any centralised entity.  How about Clients only acting on 3 first characters worth of the Blockchain, randomly. IE, My client will only process transactions that begin with 1rP........ If this were hidden from users and done randomly, there'd be no way for anyone to know who was veryfying what portions of the Blockchain  and the blockchain would then itself become decentralised.     So, the idea is, have each client only download transactions that begin  XYZ and will only verify transactions that begin XYZ. It only means that when you send Bitcoin, the transaction sends out a verification request......ahhh, but how does it know where to send the request....It would have to trawl the entire net to find a node that will verify it's XYZ transaction, and so would slow down verification.  And so Ideally, Any node should be able to verify a transaction, but it can't, because it doesn't have the entire blockchain.   So I think I've just painted myself into a corner. What about then, if when you boot up the client it actively seeks out only those nodes which will deal with and verify a XYZ transaction. It might mean a sync delay initially while it finds enough XYZ nodes to verify your transaction but once it's found them, anyway, My thoughts on the Blockchain size problem.   A distributed Blockchain, I'm sure that's what they are working on anyway since it's obvious so I've just wasted 5 minutes of my (and your ) life, sorry about that

Regulation may come, but it's not needed, the idea of Bitcoin is that it is free of Human intervention and Laws, if ever it 'needs' regulation and laws to keep it running smoothly, then it's no better than the corrupt fiat system we already have.
what happened to Dark Wallet.

he's a real talent and Passionate, a tiny bit more PR skills and he'd be a perfect BTC spokesman too.
Keep up the Great work Amir.

There'll be more and more buyers as the price drops, and the more it drops, the more buyers, only Global Thermonuclear War can stop Bitcoin, unfortunately, the Elites are thinking about exactly that.

Amagi metals.

Stagger buy and sell orders at +/- trade fee +1% above current price, wait 30 mins.
Cancel all trades.
Rinse and repeat.

You're buying low, selling high.

Make a Silver coin with a Private key on one side.
The coin is worth the Silver, plus whatever BTC, is attached to the Private  key.
Make it something small like. 0.00001 BTC.
One day it may exceed the price of the silver coin.
currently its value would be the Silver but as the Value of BTC increases.

Silver from Amagi