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Author Topic: FirstBits.com - remember and share Bitcoin addresses  (Read 24400 times)
saqwe
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June 24, 2011, 06:22:21 PM
 #41

Hi,
could you implement something like:
http://firstbits.com/1env4g

other than that great service, consider donating

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dserrano5
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June 26, 2011, 01:53:30 AM
 #42

Just created my vanity firstbits address and came here to ask for that feature. I saw that it's a popular demand, then went to try it and found that it works! Smiley

If it returned a text/plain result containing only the address (instead of a full featured HTML page), it wouldn't be that difficult to integrate with the bitcoin client. Just an HTTP request and there you go! (I couldn't do it tho, my second language isn't C++).

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June 26, 2011, 02:15:06 AM
 #43

You're not storing the results anywhere, so using the same algorithm the exact same result for any given address could be obtained even with a machine that never went online and got the blockchain transfered via sneakernet? Awesome! Cheesy


Though, is there the risk the order of very recent addresses will be rearranged as the whole network acknowledges things from different directions or does that order gets stable fast enough for that only be a concern with major blockchain forks?

(I dont always get new reply notifications, pls send a pm when you think it has happened)

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June 26, 2011, 04:46:50 AM
 #44

Hi,
could you implement something like:
http://firstbits.com/1env4g

other than that great service, consider donating

This is implemented.

http://firstbits.com/1kk5k

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June 26, 2011, 04:53:53 AM
 #45

You're not storing the results anywhere, so using the same algorithm the exact same result for any given address could be obtained even with a machine that never went online and got the blockchain transfered via sneakernet? Awesome! Cheesy


Though, is there the risk the order of very recent addresses will be rearranged as the whole network acknowledges things from different directions or does that order gets stable fast enough for that only be a concern with major blockchain forks?

That's right.

A reorg could cause problems. Likely the problem would be a simple "not found" at worst, but if screwing up people's firstbits was the point of the attack someone could slip a different one in earlier. This is not protected against now. One way would be not counting an address as "in" the chain until 6 or 10 blocks or something and refusing to return an address until then, probably better is a simple warning that the address is near the tip of the chain. Or even less obtrusive would be to watch for a reorg and only warn when one recently happened.

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FreeMoney
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June 26, 2011, 07:15:13 AM
 #46

The api is up.

http://firstbits.com/api/?a=1kk5k

Can't promise it'll stay if it gets overused though, be gentle.

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June 26, 2011, 10:31:17 AM
 #47

The api is up.

Somewhat longish, but better than nothing. Thanks!

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June 26, 2011, 06:32:39 PM
 #48

The api is up.

Somewhat longish, but better than nothing. Thanks!

Better than nothing, sheesh  Grin


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June 26, 2011, 06:55:12 PM
 #49

Nothing is what we had before Smiley (besides parsing HTML—ouch).

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June 26, 2011, 07:06:51 PM
 #50

Nothing is what we had before Smiley (besides parsing HTML—ouch).

Yeah, I was just feigning insult that you would consider it anywhere near "nothing". I guess you want firstbits.com/api/12345?

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June 26, 2011, 07:37:10 PM
 #51

Feigned or not, I admit my statement wasn't very bright.

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June 26, 2011, 07:42:20 PM
 #52

Feigned or not, I admit my statement wasn't very bright.

Haha, no problem. I appreciate the link in your sig.

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June 26, 2011, 07:47:59 PM
 #53

AWESOME SITE WOW !  Grin

I get so happy when I see devs making useful sites like this one.

Donated to you! Hope others do as well.

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June 26, 2011, 08:23:40 PM
 #54

AWESOME SITE WOW !  Grin

I get so happy when I see devs making useful sites like this one.

Donated to you! Hope others do as well.

Thanks! Glad you like it.

Making addresses shorter online is cool, but has anyone had a chance to use it in the real world? I've memorized a few of mine and now I'm just waiting for someone to offer me bitcoins on the street  Cool

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June 26, 2011, 08:32:20 PM
 #55

I'm in Spain and I guess it'll take some time for bitcoin to hit the streets, but I'm already prepared for that Grin.

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June 26, 2011, 08:37:03 PM
 #56

Is there an estimative of how long this idea will remain useful for people that aren't memory savants?

(I dont always get new reply notifications, pls send a pm when you think it has happened)

Wanna gimme some BTC for any or no reason? 1FmvtS66LFh6ycrXDwKRQTexGJw4UWiqDX Smiley

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andes
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June 26, 2011, 08:47:16 PM
 #57

One question, when you put an address that is too short (say 1k) why does not show all the addressed with that first characters? Should you get a warning when your address has the potential of being confused with another one?
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June 26, 2011, 08:49:51 PM
 #58

One question, when you put an address that is too short (say 1k) why does not show all the addressed with that first characters? Should you get a warning when your address has the potential of being confused with another one?

The service isn't designed to do that. It returns the first address (as it appeared in the block chain) that starts with "1k", ignoring case.

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June 26, 2011, 08:59:02 PM
 #59

1k points to the first instance of an address beginning with 1k in the blockchain, the first one is always only one, so there isn't others that can be confused.


Though, how would the system deal if two addresses sharing the same bunch of initial characters are seen for the first time in the same block? Are the order of addresses in blocks predictable, like they're sorted "alphabeticly" or somthing ?

(I dont always get new reply notifications, pls send a pm when you think it has happened)

Wanna gimme some BTC for any or no reason? 1FmvtS66LFh6ycrXDwKRQTexGJw4UWiqDX Smiley

The more you believe in Bitcoin, and the more you show you do to other people, the faster the real value will soar!

Do you like mmmBananas?!
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June 26, 2011, 09:10:37 PM
 #60

1k points to the first instance of an address beginning with 1k in the blockchain, the first one is always only one, so there isn't others that can be confused.


Though, how would the system deal if two addresses sharing the same bunch of initial characters are seen for the first time in the same block? Are the order of addresses in blocks predictable, like they're sorted "alphabeticly" or somthing ?

Ah, sorry, that should have been said. Ties in a block are by tx ID.

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