Bitcoin Forum
December 09, 2016, 02:16:25 AM *
News: Latest stable version of Bitcoin Core: 0.13.1  [Torrent].
 
   Home   Help Search Donate Login Register  
Pages: « 1 [2]  All
  Print  
Author Topic: PAYB.TC - The Free Bitcoin Address Shortener  (Read 4071 times)
davux
Sr. Member
****
Offline Offline

Activity: 289


Firstbits.com/1davux


View Profile WWW
July 17, 2011, 03:52:19 PM
 #21

How long is a short name guaranteed to work? Is there an expiration time?

1DavuxH9tLqU4c7zvG387aTG4mA7BcRpp2
México (Oaxaca) – France - Leeds
1481249785
Hero Member
*
Offline Offline

Posts: 1481249785

View Profile Personal Message (Offline)

Ignore
1481249785
Reply with quote  #2

1481249785
Report to moderator
1481249785
Hero Member
*
Offline Offline

Posts: 1481249785

View Profile Personal Message (Offline)

Ignore
1481249785
Reply with quote  #2

1481249785
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1481249785
Hero Member
*
Offline Offline

Posts: 1481249785

View Profile Personal Message (Offline)

Ignore
1481249785
Reply with quote  #2

1481249785
Report to moderator
1481249785
Hero Member
*
Offline Offline

Posts: 1481249785

View Profile Personal Message (Offline)

Ignore
1481249785
Reply with quote  #2

1481249785
Report to moderator
1481249785
Hero Member
*
Offline Offline

Posts: 1481249785

View Profile Personal Message (Offline)

Ignore
1481249785
Reply with quote  #2

1481249785
Report to moderator
ashmoran
Newbie
*
Offline Offline

Activity: 22


View Profile WWW
July 18, 2011, 07:06:20 PM
 #22

Is there any way to make shortened addresses verifiable?

Right now you have to trust the owner of a shortener to not change addresses. Eg the owner of EVILB.TC might shorten http://evilb.tc/yourname honestly for a few weeks (or months, or years) then suddenly change the address (or all of them on the site) to one of his own.

Short, memorable names for Bitcoin addresses are great, but is there any way to achieve them without (or with less) centralised trust?

Note: I'm not saying that PAYB.TC is evil :-)

Organiser, Bitcoin Manchester (UK)
payb.tc
Hero Member
*****
Offline Offline

Activity: 812



View Profile
July 19, 2011, 03:00:54 AM
 #23

Neat!

I would prefer if it defaulted to the text version and you could point to the html version if you chose to.

http://payb.tc/rethaw/text

that would make it a lot harder to spread virally via the 'get your own free short link' link on everyone's page. hardly seems fair.
payb.tc
Hero Member
*****
Offline Offline

Activity: 812



View Profile
July 19, 2011, 03:04:08 AM
 #24

How long is a short name guaranteed to work? Is there an expiration time?

there's no expiration time. i'll keep the site up as long as it's still being used. that might be decades.

maybe i should do some kind of internal hit counter though, and if a particular link hasn't been hit in the last 12 months say, then that shortlink can maybe be freed up for someone else to register.
payb.tc
Hero Member
*****
Offline Offline

Activity: 812



View Profile
July 19, 2011, 03:07:17 AM
 #25

Is there any way to make shortened addresses verifiable?

i'm not really sure other than have someone else run a cron to check addresses every x minutes and then alert the owner if it has changed.

payb.tc addresses aren't editible by members so they should never change.
ashmoran
Newbie
*
Offline Offline

Activity: 22


View Profile WWW
July 19, 2011, 07:49:51 AM
 #26

Yes, I don't expect they will change. Like I say, wasn't suggesting anything would go wrong with payb.tc (I've already got my tip jar name - http://payb.tc/ashmoran - which I've given to friends), just that the principle of address shorteners involves more trust than, say, URL shorteners.

Might put my payb.tc link in my sig, in fact…

Organiser, Bitcoin Manchester (UK)
ashmoran
Newbie
*
Offline Offline

Activity: 22


View Profile WWW
July 26, 2011, 12:22:17 PM
 #27

I had a thought about PAYB.TC - would it be useful to have a link from an address page to the address's blockexplorer.com page? I just went to look up my own address, it'd save a copy and paste if nothing else

Organiser, Bitcoin Manchester (UK)
payb.tc
Hero Member
*****
Offline Offline

Activity: 812



View Profile
July 26, 2011, 01:30:37 PM
 #28

I had a thought about PAYB.TC - would it be useful to have a link from an address page to the address's blockexplorer.com page?

done!

also a couple of other things...

firstly, thanks to whoever just sent me 0.1 btc donation, that's great Smiley

secondly, i noticed in the database the following short links:

http://payb.tc/mtgox edit: confirmed to be unofficial
http://payb.tc/tradehill edit: confirmed to be unofficial

unless the owners of mtgox and tradehill can confirm they are the owners of those addresses, i think we should assume it's just someone trying to be a bit sneaky.
payb.tc
Hero Member
*****
Offline Offline

Activity: 812



View Profile
July 26, 2011, 01:42:27 PM
 #29

also, i've added links to the various api options on each page.
payb.tc
Hero Member
*****
Offline Offline

Activity: 812



View Profile
July 26, 2011, 02:17:41 PM
 #30

one more update... just added xml too (i hope the formatting is acceptable, otherwise please some xml guru tell me if i need to change it):

http://payb.tc/donate/xml

thanks everyone for your interest
codler
Full Member
***
Offline Offline

Activity: 191



View Profile
July 26, 2011, 03:16:38 PM
 #31

I had a thought about PAYB.TC - would it be useful to have a link from an address page to the address's blockexplorer.com page?

done!

Thats what I said earlier.. http://forum.bitcoin.org/index.php?topic=27285.msg372019#msg372019

ashmoran
Newbie
*
Offline Offline

Activity: 22


View Profile WWW
July 26, 2011, 03:17:48 PM
 #32

Hey, the link is great, thanks for that. QR code works great too, just scanned it off my MBP screen with my iPhone.

About the mtgox/tradehill accounts… maybe it's already time you need "verified" accounts like Twitter? Smiley

Organiser, Bitcoin Manchester (UK)
payb.tc
Hero Member
*****
Offline Offline

Activity: 812



View Profile
July 26, 2011, 03:35:32 PM
 #33

I had a thought about PAYB.TC - would it be useful to have a link from an address page to the address's blockexplorer.com page?

done!

Thats what I said earlier.. http://forum.bitcoin.org/index.php?topic=27285.msg372019#msg372019

yes, i see thank you. just hadn't had much time to work on the site until today.
payb.tc
Hero Member
*****
Offline Offline

Activity: 812



View Profile
August 02, 2011, 07:28:09 AM
 #34

I have confirmed with Jered (owner of tradehill) that the short link http://payb.tc/tradehill was not made by them.

probably obvious, but i thought i'd check with them before just deleting it.

anyone using a shortening service (not just mine, but any), should be careful that they are getting the link directly from the person they intend to pay (just like you would with an ordinary bitcoin address).
payb.tc
Hero Member
*****
Offline Offline

Activity: 812



View Profile
October 24, 2011, 04:22:54 AM
 #35

today i thought of a new way to visualize bitcoin addresses... using a range of colours which are derived from each address.

check them out:

http://payb.tc/donate/rainbow =

http://payb.tc/tronlet/rainbow =

http://payb.tc/joelkatz/rainbow =

http://payb.tc/ashmoran/rainbow =


code here:

Code:
$addr=substr(preg_replace('/[^a-zA-Z0-9]/','',$_GET['addr']),0,34);

$colors=str_split('00'.addressToHash160($addr),2);

//html version:
//for ($i=0; $i<7; $i++) echo '<div style="float:left; width:50px; height:50px; background-color:#'.$colors[$i*3+0].$colors[$i*3+1].$colors[$i*3+2].'"></div>';

//png version:
$img = imagecreatetruecolor(350,50);

for ($i=0; $i<7; $i++) {
$color = imagecolorallocate($img,hexdec($colors[$i*3+0]),hexdec($colors[$i*3+1]),hexdec($colors[$i*3+2]));
imagefilledrectangle ($img,$i*50,0,$i*50+49,49,$color);
}

header('Content-Type: image/png');
header('Content-Disposition: inline; filename='.$addr.'.png');
header('Content-Transfer-Encoding: binary');
header('Pragma: public');
header("Cache-Control: private",false); // required for certain browsers    
ob_clean();
flush();
imagepng($img);
imagedestroy($img);

addressToHash160 function (by theymos, i believe) can be found here: http://pastebin.com/vmRQC7ha


have fun Cheesy

Pages: « 1 [2]  All
  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!