Bitcoin Forum
December 03, 2016, 05:51:28 PM *
News: Latest stable version of Bitcoin Core: 0.13.1  [Torrent].
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: FirstBits.com gives wrong result?!  (Read 822 times)
MaddestScientist
Member
**
Offline Offline

Activity: 76


View Profile
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.
1480787488
Hero Member
*
Offline Offline

Posts: 1480787488

View Profile Personal Message (Offline)

Ignore
1480787488
Reply with quote  #2

1480787488
Report to moderator
1480787488
Hero Member
*
Offline Offline

Posts: 1480787488

View Profile Personal Message (Offline)

Ignore
1480787488
Reply with quote  #2

1480787488
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1480787488
Hero Member
*
Offline Offline

Posts: 1480787488

View Profile Personal Message (Offline)

Ignore
1480787488
Reply with quote  #2

1480787488
Report to moderator
Topazan
Sr. Member
****
Offline Offline

Activity: 354


View Profile
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?

Save the last bitcoin for me!
Phinnaeus Gage
Legendary
*
Offline Offline

Activity: 1302


Bitcoin: An Idea Worth Spending


View Profile
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
Member
**
Offline Offline

Activity: 76


View Profile
May 24, 2012, 05:44:44 AM
 #4

At first, I also suspect that case-sensitivity is the cause, but when I check "1abc", both FirstBits.com and blockchain.info return 1AbcTuRqKkr7RsPMKchdSd2kV6dd1THWru, this implies that FirstBits.com is NOT case-sensitive.

Any other ideas?
Case sensitive comes to mind, but not sure is that's the cause.

~Bruno~

EDIT: 21 seconds to late.
CIYAM
Legendary
*
Online Online

Activity: 1820


Ian Knowles - CIYAM Lead Developer


View Profile WWW
May 24, 2012, 05:48:06 AM
 #5

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 | 1ciyam3htJit1feGa26p2wQ4aw6KFTejU
MaddestScientist
Member
**
Offline Offline

Activity: 76


View Profile
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?
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
Legendary
*
Online Online

Activity: 1820


Ian Knowles - CIYAM Lead Developer


View Profile WWW
May 24, 2012, 05:59:43 AM
 #7

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 | 1ciyam3htJit1feGa26p2wQ4aw6KFTejU
TTBit
Legendary
*
Offline Offline

Activity: 1136


View Profile
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
Legendary
*
Offline Offline

Activity: 1288


View Profile
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
Legendary
*
Offline Offline

Activity: 1722



View Profile WWW
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: the convenience of a web wallet, without the risks
MaddestScientist
Member
**
Offline Offline

Activity: 76


View Profile
May 24, 2012, 07:47:26 AM
 #11

Thanks for link.  Cheesy
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 Offline

Activity: 1288


View Profile
May 24, 2012, 07:50:14 AM
 #12

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
Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!