xhomerx10
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May 01, 2015, 10:05:03 PM |
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Not a single address, but how about the "longest shared prefix"? 18eXmgR5Svoqqa6PaYVrKvbH6hvrp5xe3A18eXmgR5Svoqqa6JXSMmbNaD4Cs5ThcV1P(15 chars) The hash160 shares 83bits: 53e1f4f491509f9012bd901be5147447f770018b53e1f4f491509f9012bd825ce1e9599b253188efover half of the address. The addresses are on the blockchain. Proof of ownership: " This address is controlled by basil00." H3l9fTn8FRRMvBdiF0Wx/hV/aKQ+OsTjmzrF6/3X9KwlWmxbeb12KzkMHqG4AvJPj5PJUErLTkksnf+JbQEmd6E= (address #1) H5fp1+mGX8D9ImzapYG1MC/V86N9RbDbYSfbLpyWaUH1ptnfbR+OP9Mt+fnC5UgyziuP6BHsDNUtb9c5jcTqBes= (address #2) I am personally not a fan of shared prefixes, when I send stuff I check the first 8 or so digits, and if they are the same, I send it. Theres a VERY small chance the address I forgot to copy has the same first 8 digits as the address copied by mistake, so this practice works very well for me. I also see no reason to have address pairs unless to trick people. This is experimentation. I doubt you will see too many addresses like this in use and even if you do, they will belong to the same person anyway so the odds of your payment going to some scammer are very, very low.
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tspacepilot
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Activity: 1456
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I may write code in exchange for bitcoins.
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May 01, 2015, 10:44:49 PM |
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Not a single address, but how about the "longest shared prefix"? 18eXmgR5Svoqqa6PaYVrKvbH6hvrp5xe3A18eXmgR5Svoqqa6JXSMmbNaD4Cs5ThcV1P(15 chars) The hash160 shares 83bits: 53e1f4f491509f9012bd901be5147447f770018b53e1f4f491509f9012bd825ce1e9599b253188efover half of the address. The addresses are on the blockchain. Proof of ownership: " This address is controlled by basil00." H3l9fTn8FRRMvBdiF0Wx/hV/aKQ+OsTjmzrF6/3X9KwlWmxbeb12KzkMHqG4AvJPj5PJUErLTkksnf+JbQEmd6E= (address #1) H5fp1+mGX8D9ImzapYG1MC/V86N9RbDbYSfbLpyWaUH1ptnfbR+OP9Mt+fnC5UgyziuP6BHsDNUtb9c5jcTqBes= (address #2) I am personally not a fan of shared prefixes, when I send stuff I check the first 8 or so digits, and if they are the same, I send it. Theres a VERY small chance the address I forgot to copy has the same first 8 digits as the address copied by mistake, so this practice works very well for me. I also see no reason to have address pairs unless to trick people. This is experimentation. I doubt you will see too many addresses like this in use and even if you do, they will belong to the same person anyway so the odds of your payment going to some scammer are very, very low. Indeed, since you have to generate these as a pair, it'd be really unlikely that one person should have one half of the pair and a scammer would have the other half. They'd essentially have to vanitygen on the other half and that would take crazy long for some of these prefixes.
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basil00
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May 02, 2015, 05:48:54 AM |
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Indeed, since you have to generate these as a pair, it'd be really unlikely that one person should have one half of the pair and a scammer would have the other half. They'd essentially have to vanitygen on the other half and that would take crazy long for some of these prefixes.
This is correct. For a shared prefix of n-bits, you can be sure (with n-bits of security) that they were generated as a pair. For n=80, this is a non-trivial level of security, but not considered "strong" by most standards. For reference, Bitcoin itself has 128 bits of security, so there is still a while to go.
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BG4
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Activity: 1006
Merit: 1024
PaperSafe
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May 05, 2015, 05:55:55 PM |
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Does this address make it into the hall...??
1234567891p1rBJWFPmHTUiupi1VA6YKQw
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98problems
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May 05, 2015, 06:55:33 PM |
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Does this address make it into the hall...??
1234567891p1rBJWFPmHTUiupi1VA6YKQw
yeah it should be on it as it seems to be 9 digits in a row vanity address, also is it yours?
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tspacepilot
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Activity: 1456
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I may write code in exchange for bitcoins.
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May 05, 2015, 06:57:22 PM |
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Does this address make it into the hall...??
1234567891p1rBJWFPmHTUiupi1VA6YKQw
Pretty cute but it seems borderline to me for hall of fame. Definitely a good one, but I don't know if it's top 10. ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
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98problems
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May 05, 2015, 07:15:46 PM |
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Does this address make it into the hall...??
1234567891p1rBJWFPmHTUiupi1VA6YKQw
Pretty cute but it seems borderline to me for hall of fame. Definitely a good one, but I don't know if it's top 10. ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) but theres no such type address and its unique i think the thread owner should add it
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tspacepilot
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Activity: 1456
Merit: 1081
I may write code in exchange for bitcoins.
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May 05, 2015, 07:45:46 PM |
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Does this address make it into the hall...??
1234567891p1rBJWFPmHTUiupi1VA6YKQw
Pretty cute but it seems borderline to me for hall of fame. Definitely a good one, but I don't know if it's top 10. ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) but theres no such type address and its unique i think the thread owner should add it Kinda too bad that there's no 0 in bitcoin base58 encoding, it would be nice to have a 0 after that 9 ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
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Nikinger
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May 05, 2015, 08:28:08 PM |
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Kinda too bad that there's no 0 in bitcoin base58 encoding, it would be nice to have a 0 after that 9 ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) You can use "o" instead. I think both 123456789o123... and 123456789123... would be a canidate for the hall of fame ![Wink](https://bitcointalk.org/Smileys/default/wink.gif)
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1EwKrY5Bn3T47r4tYqSv6mMQkUyu7hZckV
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louise123
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May 06, 2015, 10:33:22 AM |
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Not a single address, but how about the "longest shared prefix"? 18eXmgR5Svoqqa6PaYVrKvbH6hvrp5xe3A18eXmgR5Svoqqa6JXSMmbNaD4Cs5ThcV1P(15 chars) The hash160 shares 83bits: 53e1f4f491509f9012bd901be5147447f770018b53e1f4f491509f9012bd825ce1e9599b253188efover half of the address. The addresses are on the blockchain. Proof of ownership: " This address is controlled by basil00." H3l9fTn8FRRMvBdiF0Wx/hV/aKQ+OsTjmzrF6/3X9KwlWmxbeb12KzkMHqG4AvJPj5PJUErLTkksnf+JbQEmd6E= (address #1) H5fp1+mGX8D9ImzapYG1MC/V86N9RbDbYSfbLpyWaUH1ptnfbR+OP9Mt+fnC5UgyziuP6BHsDNUtb9c5jcTqBes= (address #2) That's cool, but, don't you get confused because both your addresses there have half the address in common? They both start the same.. Also, is it possible to give it a prefix? Like Vanity, e.g: 1xxxxx
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TheRealSteve
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May 06, 2015, 12:59:57 PM Last edit: May 06, 2015, 04:25:25 PM by TheRealSteve |
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That's cool, but, don't you get confused because both your addresses there have half the address in common? They both start the same..
I'd suspect he could always keep them apart as 'PaY' and 'TheV1P' Also, is it possible to give it a prefix? Like Vanity, e.g: 1xxxxx
For that, you'd be better off with vanitygen. The addresses he generated rely on the birthday paradox. E.g. in a large crowd, chances are good two people share the same birth date (ignoring year) - but there's no telling in advance if that date is January 20th, May 1st or August 14th. Same with addresses - generate a bunch of them, and two are likely to share a characteristic - the same starting bits, ending bits, middle bitchbits! (I meant BITS! Oh dear), whatever you'd set as criteria.. but the exact values can't be determined in advance.
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louise123
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May 06, 2015, 02:27:54 PM |
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That's cool, but, don't you get confused because both your addresses there have half the address in common? They both start the same..
I'd suspect he could always keep them apart as 'PaY' and 'TheV1P' Also, is it possible to give it a prefix? Like Vanity, e.g: 1xxxxx
For that, you'd be better off with vanitygen. The addresses he generated rely on the birthday paradox. E.g. in a large crowd, chances are good two people share the same birth date (ignoring year) - but there's no telling in advance if that date is January 20th, May 1st or August 14th. Same with addresses - generate a bunch of them, and two are likely to share a characteristic - the same starting bits, ending bits, middle bitch, whatever you'd set as criteria.. but the exact values can't be determined in advance. Got it. Thanks!
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BG4
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Activity: 1006
Merit: 1024
PaperSafe
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May 06, 2015, 11:53:58 PM |
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That's cool, but, don't you get confused because both your addresses there have half the address in common? They both start the same..
I'd suspect he could always keep them apart as 'PaY' and 'TheV1P' Also, is it possible to give it a prefix? Like Vanity, e.g: 1xxxxx
For that, you'd be better off with vanitygen. The addresses he generated rely on the birthday paradox. E.g. in a large crowd, chances are good two people share the same birth date (ignoring year) - but there's no telling in advance if that date is January 20th, May 1st or August 14th. Same with addresses - generate a bunch of them, and two are likely to share a characteristic - the same starting bits, ending bits, middle bitchbits! (I meant BITS! Oh dear), whatever you'd set as criteria.. but the exact values can't be determined in advance. Would this be considered a Birthday paradox event 1BirthDAY5nLWc9HLciynq5FSNWhemk5Kw 1BirthDayjAuMBf4XSs3VQV3UfE3UeVapb
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tspacepilot
Legendary
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Activity: 1456
Merit: 1081
I may write code in exchange for bitcoins.
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May 07, 2015, 05:30:41 PM |
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That's cool, but, don't you get confused because both your addresses there have half the address in common? They both start the same..
I'd suspect he could always keep them apart as 'PaY' and 'TheV1P' Also, is it possible to give it a prefix? Like Vanity, e.g: 1xxxxx
For that, you'd be better off with vanitygen. The addresses he generated rely on the birthday paradox. E.g. in a large crowd, chances are good two people share the same birth date (ignoring year) - but there's no telling in advance if that date is January 20th, May 1st or August 14th. Same with addresses - generate a bunch of them, and two are likely to share a characteristic - the same starting bits, ending bits, middle bitchbits! (I meant BITS! Oh dear), whatever you'd set as criteria.. but the exact values can't be determined in advance. Would this be considered a Birthday paradox event 1BirthDAY5nLWc9HLciynq5FSNWhemk5Kw 1BirthDayjAuMBf4XSs3VQV3UfE3UeVapb Lol, funny but no. TheRealSteve was referring to this post: Wow. I missed this post but that us amazing! That would take forever with my rig. How fast are you able to generate addresses?
Thanks for noticing ![Wink](https://bitcointalk.org/Smileys/default/wink.gif) It took me about 1 week to generate on a Haswell 4 core / 8 threads. Using vanitygen to find such pairs of addresses is not feasible, e.g. $ vanitygen "18eXmgR5Svoqqa6" [1.34 Mkey/s][total 24407296][Prob 0.0%][50% in 3.161665e+10y]
...so 50% probability in about 32 billion years! I didn't use vanitygen, but rather a specialized tool designed to find partial address collisions based on the Birthday Attack. I might clean up the code and release it; although I am not sure if it has any use beyond some novelty value. The code currently uses CPU only. But a GPU port would make 100+ bit collisions feasible. Check out that wikipedia link to get the scoop.
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Jeremycoin
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Activity: 1022
Merit: 1003
𝓗𝓞𝓓𝓛
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May 08, 2015, 03:56:54 AM |
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1JK coiNhK2DQJbY3S58efJ4GcDq9E6WMTP I made this address from a website, but I forgot the name ![Grin](https://bitcointalk.org/Smileys/default/grin.gif)
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faucet used to be profitable
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Timelord2067
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Activity: 3794
Merit: 2235
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September 15, 2015, 03:09:35 AM |
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For your consideration: 135792468LrELc2JqhRYgfQzbC9ToW1YHR (Odd followed by even) 1ZeroThwS9F2pRFLD12EQsCdVALLskRKu 1Zero1LEKhyM3DXPbavjLWDSQZX84jbrT 1oneCZCbFDsz82fXbyJDPBiSqwAChokCy 1one2jBTmVydWsj5K4Bt9FCZZbu2e5S1s 1Two3EFjNMLMRhsXksTV6EXZXdBoR6kGs 12Three4vZwqNsPJvRkWKwUrDPToN2hWQH 123Four5AF3Fxz3Fvo8mu3h6ZfnE3koZ4B 1234Fivec1T6X1Wy7DD9QDSsEtsPJqJaVs 12345SixDA7z8FNqizDbQjZgvGQzkb8S5k Work in progress - (because I can) 1NetHackbTuJLFq8EcpQEdVZrQ19Va3dZ3 1RodneyR4MkamFbDGMZq4eCQA9pvpz4rm 1YendorFSmjpVq8QnfsBHGd38EoPkKqyH Game themes.
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RGBKey
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September 15, 2015, 03:10:50 AM |
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I made an address with vanitygen that started with 1RGBKey...I was very proud of myself, took me two nights on my GPU.
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asadou
Newbie
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September 15, 2015, 03:13:23 AM |
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That was very cool~! ![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
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Timelord2067
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September 15, 2015, 03:32:08 AM |
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That was very cool~! ![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif) Hey thanks for that Here's some more... Numbers 1EightWaN7HhypviuKPkjkrhYxYgMACEu 1ELeven2hVS6zXmKXM972zFnP2L36tfpxx 1TweLvekr6Mfv2udNEomS8455rH8PDQ7x 1FifteeniT4td8Buuu2SrnpymqkgqD7rZs Poker 1AKQJ1o8sVgtKFEtogvRWWc7facyGFLxAW typo, but I digress...) 1AKQJ1o9BxnZNFUcxmxXAX7nxb9DocYCqH Science Fiction 1138THXLC9p7pViC8tY5bReACsESYoWDpx
1TARDiStj1e4e95ZMmEtfp55c3czZEwUe 1Tardiso1y14KaA2zADtGPQF873zqBrSG 1SiDRATQ1jcgtpvix29MdX6bEWKrpCDcB (Tardis spelt backwards)... 1Davrospdie3H1KcaMiVbqV6eiHd5ZAixV 1omegaA3XgvnEfLAYDfL5LpEFXEghqxM2
1Caprica4iuhpy4jgToPjzXcM7njo8Dovn 1Cubit21Bf7UqH4qMnhQmkc6mF2Bz868t4 1CyLonc5VJ8hY2xetCNHRzao1nhVyp1J74 1Tauron2TiFAFQex3T3diw63sioZiQUhE 1GemenonAnjTSQjXMPMpxWqxKrLh1oTtH1
*edit* was mind-numbingly lucky to find this 1NZin2o2oWF39M9kBUTt6bPxTih6mNjFEC in an hour flat... Four proper uses of the letter "O" 1VoodooDDScLaK7n3vU4hp82xAxsZS1ua 13VoodoohH4cRF57pB3syKVFARs1ia9tv3 s-e-x 18ooSexuEAowSmhvPNjgh5nD4S1Uu5jZhV 181and69U8Gd4ugWaiUfUc9beAZPaNDCqe (think about it) Brand name (upper, lower and proper) 1QANTAS5pbjuaksz1goWQ7VmnoU35P86VM 1QantasmbbncG1cdN3HEKAhXNWFdeUx5J 1qantas1br8ez3bS3Cz8yZv9r6GJTVpYw Place names 1SydneyoDR3bboNuSARpsGEvLDxUsvwVK 1TongaYrbYoE9JjNg3wwL45MQHQJTk2pN 1TahitiY7nPAjJxPwRRnwVcHzcmnwSCZk Others... 1TempestKSTHfe7zMfkTkbqGRiZruaKtj
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Timelord2067
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September 15, 2015, 03:33:31 AM |
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I made an address with vanitygen that started with 1RGBKey...I was very proud of myself, took me two nights on my GPU.
I'll add it to the list I have - it's good to have some smaller targets, it enables me to see that Vanitygen is working and how long until the next target is found.
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