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Showing 20 of 1,943 results by findftp
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Topic
Board Announcements (Altcoins)
Re: [announce] Namecoin - a distributed naming system based on Bitcoin
by
findftp
on 21/07/2020, 11:58:04 UTC
i cannot see why the market price shall have any relevance, for me only the functionality has. This, i believe in this coin, and own it independant of the market price. And i like it because of no lying PR. The only thing is, that other technicians should know that this technology exist.

Functionality has a price.
Namecoin cannot exist without mining
Mining costs joules.
Joules are not free.

Post
Topic
Board Development & Technical Discussion
Re: Why does the difficulty change every 2016 blocks but not 2000 or 2100?
by
findftp
on 31/10/2016, 16:42:45 UTC
...
I mean, for me it would make some sense to make it sync with the block reward period which is 210000 blocks.
2016 is not a factor of 210000.

Was this done deliberately? Yes, of course it was, but why?
...
Why did Satoshi not sync this to the block reward period and use 2000 or 2100 blocks(which are both a factor of 210000), which 2000 as most obvious round number.


...

Regarding syncing with the block reward period, there was also some intent to avoid having both occur simultaneously to decrease the variability of having two events occur at the same block.

Sounds legit, thought of this also.

Then we can also completely ignore that this was my 2016th post...  Got nothing to do with it... Wink

Edit,.. and my activity being exactly half of it, 1008... Huh
Post
Topic
Board Development & Technical Discussion
Why does the difficulty change every 2016 blocks but not 2000 or 2100?
by
findftp
on 31/10/2016, 15:17:09 UTC
I know 2016 blocks is roughly two weeks, but why did satoshi chose this connection of the protocol to the 'real' world?
I mean, for me it would make some sense to make it sync with the block reward period which is 210000 blocks.
2016 is not a factor of 210000.

Was this done deliberately? Yes, of course it was, but why?
Was this number chosen as some sort of 1337 hint to this 2016 election year?

Why did Satoshi not sync this to the block reward period and use 2000 or 2100 blocks(which are both a factor of 210000), which 2000 as most obvious round number.

Since bitcoin is a global internet phenonemon it doesn't make sense to me to sync the difficulty adjustment with 2 earthly weeks.

Personally I stick with the 1337 explanation until I see another reasonable explanation.
Post
Topic
Board Bitcoin Technical Support
Re: What happens when bitcoins are lost?
by
findftp
on 04/10/2016, 14:59:11 UTC
... I lost 1 mBTC once and was able to bruteforce it back because it was located on an address which was constructed by an algorithm.
It's comparable with HD wallets which generates all future addresses based on a seed. As long as you know the seed you are able to recover all the coins.



How do you brute force your coins back?

Since https://github.com/gurnec/btcrecover and https://github.com/magnumripper/JohnTheRipper could not do what I wanted I learned some python and made a script myself.
I still knew which algorithm I used to construct the private key so I just had to check al 70 million possibilities Wink
My script was slow in the beginning, a whopping 7 keys/second/core! But I managed to speed it up to 2000 keys/second/core using stuff from https://github.com/weex/addrgen.
With this speed I was able to retrieve my mBTC within a day. Hooray.
After that I let it run to see if others were as stupid as me.
There was. One. A used address with some similar construction to create the private key. There had only be 7 mBTC stored on that key, but another scriptkiddy probably took the money before me so that I didn't have to think what to do with it because it was an empty address again.

No way it was financially profitable to let the script run but I learnt a lot during the process.



Post
Topic
Board Bitcoin Technical Support
Re: anyone has method to get all the addresses with btc
by
findftp
on 30/09/2016, 12:29:47 UTC
Yes, download it from this page.
Post
Topic
Board Bitcoin Technical Support
Re: What happens when bitcoins are lost?
by
findftp
on 27/09/2016, 23:42:04 UTC
This makes me wonder about twenty years from, and all the people with Bitcoin who died. Unless they told someone who they can trust and gave them their password, it will all be gone.

Isn't it fantastic!
Post
Topic
Board Development & Technical Discussion
Re: Create Bitcoin Address using custom private key using Vanitygen
by
findftp
on 27/09/2016, 19:23:47 UTC
I think that is closer to what he wants, but what he is really talking about is something like this:
5supersecretprivatekeyEeiWPBaZM4o6frexXvmko6


Aha. I don't think it is possible because not all characters are allowed, just like with the bitcoin address.
Post
Topic
Board Development & Technical Discussion
Re: Create Bitcoin Address using custom private key using Vanitygen
by
findftp
on 27/09/2016, 13:05:00 UTC
bitaddress.org is your answer

I don't believe there is an option there to use a custom private key as he asked.

Yes there is, under "wallet details"

You can enter a private key in format: WIF, WIFC, HEX, B64, B6, MINI, BIP38

For example, the private key for Base6 address "1425342302314253423023142534230231425342302314333323023142534230231425342302314 25342302314253423023"  is "5JMBJfgXCPpxB5HjiVJB4YvZ2wv4M6z3wqbTjtPqFKMCEC4E2jL"


I think that is close, but given what he wrote, doesn't seem to me to be what he is asking.  Maybe it is though.



I think what he wrote comes down to a brainwallet for which there is also an option under 'brain wallet'

edit:
The asociated public and private key for his "supersecretprivatekey" passphrase randomized with SHA256 are:
12f3na5TXRs4itNi9i1TCeSsXkny7A1hxp
5KHHB79dmtJHA5QfGXa5rtHdWDrx8EeiWPBaZM4o6frexXvmko6
Post
Topic
Board Development & Technical Discussion
Merits 2 from 1 user
Re: Create Bitcoin Address using custom private key using Vanitygen
by
findftp
on 27/09/2016, 12:50:00 UTC
⭐ Merited by ETFbitcoin (2)
bitaddress.org is your answer

I don't believe there is an option there to use a custom private key as he asked.

Yes there is, under "wallet details"

You can enter a private key in format: WIF, WIFC, HEX, B64, B6, MINI, BIP38

For example, the private key for Base6 address "1425342302314253423023142534230231425342302314333323023142534230231425342302314 25342302314253423023"  is "5JMBJfgXCPpxB5HjiVJB4YvZ2wv4M6z3wqbTjtPqFKMCEC4E2jL"
Post
Topic
Board Bitcoin Technical Support
Re: What happens when bitcoins are lost?
by
findftp
on 27/09/2016, 10:55:14 UTC
If you lose your private keys (and the bitcoins on them) it is over, 0 chance to recover.

Although you are right for most cases, I lost 1 mBTC once and was able to bruteforce it back because it was located on an address which was constructed by an algorithm.
It's comparable with HD wallets which generates all future addresses based on a seed. As long as you know the seed you are able to recover all the coins.
Post
Topic
Board Development & Technical Discussion
Re: Create Bitcoin Address using custom private key using Vanitygen
by
findftp
on 27/09/2016, 10:49:45 UTC
bitaddress.org is your answer
Post
Topic
Board Altcoin Discussion
Re: Litecoin is officially dead
by
findftp
on 21/09/2016, 12:24:00 UTC
Litecoin will see a major crash with no recovery within the next 5 weeks. Mark my words. 5 weeks.

OMG, just another 3 days!!1!

Post
Topic
Board Service Announcements
Re: BitcoinWisdom.com - Live Bitcoin/LiteCoin Charts
by
findftp
on 16/09/2016, 12:55:08 UTC
Could you add a month time interval to the charts?
Some data became so old that it is not possible to see the complete history anymore, especially on mobile devices with limited resolution.
Custom time interval could also be handy.
Post
Topic
Board Nederlands (Dutch)
Re: Rabobank against bitcoin transactions
by
findftp
on 14/09/2016, 13:50:30 UTC
When the "Ethical commission" of Rabobank limited the possibilities to buy bitcoin from bitonic around November 2013th I quit my account there and moved to ABN amro.
When they called me to ask why, I told them to go fuck themselves

Never had any problem (yet) with ABN afterwards

I suggest you do the same, also when they ask you why.

edit: OMG, I became legendary...
Post
Topic
Board Development & Technical Discussion
Re: Other BTC address properties
by
findftp
on 12/09/2016, 14:40:49 UTC
Post
Topic
Board Development & Technical Discussion
Merits 1 from 1 user
Re: Other BTC address properties
by
findftp
on 12/09/2016, 14:27:24 UTC
⭐ Merited by ETFbitcoin (1)
OP_RETURN is what you are looking for.
For example, it's implemented at www.eternitywall.it
Post
Topic
Board Bitcoin Technical Support
Re: What lightweight wallet can i load on my laptop and connect to my trusted node?
by
findftp
on 12/09/2016, 10:43:37 UTC
A pruned bitcoin core wallet. Takes a few gigs, not tens.
Post
Topic
Board Project Development
Re: [ANN] CoinMap 2.0! (Map showing places where Bitcoin is accepted)
by
findftp
on 25/08/2016, 17:22:11 UTC
Your website looks fucked up.
Take a look and you understand what I mean.
http://coinmap.peercointalk.org/
Post
Topic
Board Development & Technical Discussion
Re: Locking a wallet so I can't withdraw coins
by
findftp
on 12/07/2016, 19:20:47 UTC
I'm not really sure if this should go here or off-topic, but I think it should be here  Cheesy

I was wondering if there's a way I could deposit bitcoins to a wallet, address, and I wouldn't be able to withdraw them until I reach a certain sum
I'd like to start a fund to save money for a car, however, I always end up spending my money instead of saving it  Cheesy
Is there a way to set something up, where I could be able to withdraw the coins only when the balance of the wallet reaches 10BTC or something like that?
For example, generating a password that would be given to me once the balance hits 10 or something like that  Cheesy

You're probably interested in checklocktimeverify
I think in the future we'll see wallets with a feature to lock your funds for a certain amount of time.
I'm not sure if a certain balance could unlock it though.

I dont think there is a wallet like that. Hahah Cheesy not sure but I've never heared one before. Maybe what you can do is contact the support about that so they can make some adjustments in their platform. But I think it will take some time before they can do that. Another thing you can do is if you have a wife, ask her to create a wallet and she will keep your BTC until it reaches to your goal price whis is 10BTC hahaha Cheesy Just a suggestion Tongue

Multisig could be helpful.
Create a multisigwallet where 2 keys are needed to unlock the funds.
Or, 2 out of 3, or anything else.
Post
Topic
Board Meetings (Nederlands)
Re: Halving party
by
findftp
on 08/07/2016, 09:30:44 UTC