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Author Topic: FirstBits.com - remember and share Bitcoin addresses  (Read 25884 times)
SgtSpike
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July 23, 2013, 10:16:57 PM
 #221

I don't think this is true or needed.  Some addresses have no firstbits base representation, because an address differing only by case appeared earlier.
The chance of two addresses only differing by case is something like 1 in 34^34 (or 34^27 if you're looking at the shortest possible Bitcoin address), is it not?  If so, I'd say we can safely assume no two addresses have been, or will ever have, the same address differing only by case.  Even 24^27 is such an impossibly high number as to conclude it will not happen within the life of the earth.

Nevertheless, if I recall correctly, examples do exist, presumably where one address is not generated in the usual way (and coins sent to it are therefore dead).
Ok, that make sense.  If a person purposefully tried to copy an address, all they'd have to do is worry about the checksum matching, and that's just a matter of a script running through combinations of various capitalized/uncapitalized letters and numbers until they find a checksum that matches the checksum of the original address.  I can see how this would be possible.
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SgtSpike
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August 08, 2013, 06:44:05 PM
 #222

Firstbits is still down on blockchain.info.  Is there a live example of ABE with firstbits lookup?
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August 08, 2013, 07:59:26 PM
 #223

Firstbits is still down on blockchain.info.  Is there a live example of ABE with firstbits lookup?
I don't know of any offhand.

Can a change to the best-chain criteria protect against 51% to 90+% attacks without a hard fork?
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August 13, 2013, 01:48:07 PM
 #224

This looks like it'll make it possible to actually memorize an address.  Cool! Grin
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August 13, 2013, 06:50:32 PM
 #225

You have to be always drunk. That's all there is it's the only way. So as not to feel the horrible burden of time that breaks your back Tongue

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August 13, 2013, 08:50:45 PM
 #226

This looks like it'll make it possible to actually memorize an address.  Cool! Grin

It is very possible!  I have three of my addresses memorized so that I can easily send to any one of them any time.

Problem is, there's no way to look up firstbits right now, and piuk doesn't seem to care that it isn't working on blockchain.info.
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August 16, 2013, 02:01:04 PM
 #227

Shortening a hash, especially a Bitcoin address is just asking for trouble

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August 16, 2013, 02:47:26 PM
 #228

Shortening a hash, especially a Bitcoin address is just asking for trouble

it's more like a 'shortcut'

just like we don't type c:\program files\bitcoin\bitcoin.exe -datadir=g:\data  every time we want to run bitcoin, we just use a shortcut that knows where to find it

faiza1990
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August 16, 2013, 02:59:27 PM
 #229

dumb

teukon
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August 16, 2013, 03:39:24 PM
 #230

Shortening a hash, especially a Bitcoin address is just asking for trouble.

Shortening a hash, especially a Bitcoin address is just asking for trouble

Plagiarism.  Set to ignore faiza1990.
SgtSpike
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August 16, 2013, 06:32:27 PM
 #231

Shortening a hash, especially a Bitcoin address is just asking for trouble
Please do tell why.
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August 25, 2013, 11:27:50 PM
 #232

Faiza1990 is a known troll, don't feed him

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December 03, 2013, 11:08:56 AM
 #233

I think this definitely has its uses, not dumb. It can of course cause trouble in some scenarios but I would still like to use it and have a simple address to tell someone.
But now the blockchain.info's API doesn't work and reading this thread I get is hasn't worked for a while. Is there a working firstbits lookup somewhere?

SgtSpike
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December 03, 2013, 04:24:05 PM
 #234

I think this definitely has its uses, not dumb. It can of course cause trouble in some scenarios but I would still like to use it and have a simple address to tell someone.
But now the blockchain.info's API doesn't work and reading this thread I get is hasn't worked for a while. Is there a working firstbits lookup somewhere?
The blockchain.info one goes up and down often.  It seems there's some backend process that crashes/stops working.

And no, there are no other lookups available, so if blockchain.info's lookup isn't working, then there's no way to look up firstbits addresses.
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