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FirstBits.com gives wrong result?!
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Topic: FirstBits.com gives wrong result?! (Read 1030 times)
MaddestScientist
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FirstBits.com gives wrong result?!
May 24, 2012, 05:31:47 AM
#1
Hi all,
I just tried FirstBits.com to look for an address "1bbbb", it gets resolved to 1bbbb2oiLBohHtd9uo6o3JeEbMG3ZtFUs, the first use of the address is today (24 May 2012). However, when I use blockchain.info, "1bbbb" becomes 1BBbBqtJcwqSQDTJ2hqVnoMozGxh97vnH3, and the first use of the address is 05 Feb 2011.
Similar issues were observed for "1cccc" and many other addresses.
Does it mean FirstBits.com gives wrong results? Could I be missing something?
Thanks.
Topazan
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Re: FirstBits.com gives wrong result?!
May 24, 2012, 05:36:44 AM
#2
I'm not overly familiar with either service, but it looks like the FirstBits result is case sensitive, the blockchain result is not. Could that be causing your issue?
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Phinnaeus Gage
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Bitcoin: An Idea Worth Spending
Re: FirstBits.com gives wrong result?!
May 24, 2012, 05:37:05 AM
#3
Case sensitive comes to mind, but not sure is that's the cause.
~Bruno~
EDIT: 21 seconds to late.
MaddestScientist
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Re: FirstBits.com gives wrong result?!
May 24, 2012, 05:44:44 AM
#4
At first, I also suspect that case-sensitivity is the cause, but when I check "1
a
bc", both FirstBits.com and blockchain.info return 1
A
bcTuRqKkr7RsPMKchdSd2kV6dd1THWru, this implies that FirstBits.com is NOT case-sensitive.
Any other ideas?
Quote from: Phinnaeus Gage on May 24, 2012, 05:37:05 AM
Case sensitive comes to mind, but not sure is that's the cause.
~Bruno~
EDIT: 21 seconds to late.
CIYAM
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Re: FirstBits.com gives wrong result?!
May 24, 2012, 05:48:06 AM
#5
Quote from: MaddestScientist on May 24, 2012, 05:44:44 AM
Any other ideas?
Quite likely this is due to a different character collating method being used by the DBs in question (even if they are using the same RDBMS you can still have different collation methods which determine the ordering).
With CIYAM anyone can create 100% generated C++ web applications in literally minutes.
GPG Public Key
|
1ciyam
3htJit1feGa26p2wQ4aw6KFTejU
MaddestScientist
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Re: FirstBits.com gives wrong result?!
May 24, 2012, 05:53:31 AM
#6
This is one of the possibilities.
But I think regardless of the cause behind the differences, this need to be resolved. Otherwise, one could be sending coins to the wrong person if he relies on FirstBits.com
Perhaps the creator of FirstBits.com can give us more information. Anyone know if (s)he is active in this forum?
Quote from: CIYAM Pty. Ltd. on May 24, 2012, 05:48:06 AM
Quote from: MaddestScientist on May 24, 2012, 05:44:44 AM
Any other ideas?
Quite likely this is due to a different character collating method being used by the DBs in question (even if they are using the same RDBMS you can still have different collation methods which determine the ordering).
CIYAM
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Ian Knowles - CIYAM Lead Developer
Re: FirstBits.com gives wrong result?!
May 24, 2012, 05:59:43 AM
#7
Quote from: MaddestScientist on May 24, 2012, 05:53:31 AM
This is one of the possibilities.
But I think regardless of the cause behind the differences, this need to be resolved. Otherwise, one could be sending coins to the wrong person if he relies on FirstBits.com
Certainly this is of concern.
If there aren't already vanity addresses in real use that only differ in case then I would think the result should be a case insensitive match (with the oldest address being retrieved of course), however, if there are such addresses already being used then one would probably require that the matching itself be case sensitive (so 1bbb would never return 1BBB).
With CIYAM anyone can create 100% generated C++ web applications in literally minutes.
GPG Public Key
|
1ciyam
3htJit1feGa26p2wQ4aw6KFTejU
TTBit
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Re: FirstBits.com gives wrong result?!
May 24, 2012, 06:46:56 AM
#8
the address "1FuckerynVncy7xviHYGfTQ5tgAJxEM5i8" resolves to "Your firstbits address: 1fucker"
yet...
"1fucker does not match any address in the chain."
and
"1Fucker" resolves to "1FuckerynVncy7xviHYGfTQ5tgAJxEM5i8"
good judgment comes from experience, and experience comes from bad judgment
benjamindees
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Re: FirstBits.com gives wrong result?!
May 24, 2012, 07:41:59 AM
#9
It's not case-sensitivity. It's that Firstbits.com seems to only consider an address
after you physically enter it into their website
, and not before.
See:
https://bitcointalk.org/index.php?topic=82065.0
Civil Liberty Through Complex Mathematics
ThomasV
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Re: FirstBits.com gives wrong result?!
May 24, 2012, 07:46:11 AM
#10
are you relying on the first bits of your vanity address to receive bitcoins?
what could possibly go wrong?
Electrum
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MaddestScientist
(OP)
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Re: FirstBits.com gives wrong result?!
May 24, 2012, 07:47:26 AM
#11
Thanks for link.
Quote from: benjamindees on May 24, 2012, 07:41:59 AM
It's not case-sensitivity. It's that Firstbits.com seems to only consider an address
after you physically enter it into their website
, and not before.
See:
https://bitcointalk.org/index.php?topic=82065.0
benjamindees
Legendary
Offline
Activity: 1330
Merit: 1000
Re: FirstBits.com gives wrong result?!
May 24, 2012, 07:50:14 AM
#12
Quote from: ThomasV on May 24, 2012, 07:46:11 AM
are you relying on the first bits of your vanity address to receive bitcoins?
what could possibly go wrong?
No. I considered it before testing it out and finding it to be horribly broken.
Civil Liberty Through Complex Mathematics
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