Bitcoin Forum
June 25, 2024, 05:09:25 AM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: [1] 2 3 4 5 6 7 »
1  Local / Nederlands (Dutch) / Re: Europese verkiezingen, wie zijn bitcoin believers ? on: May 23, 2024, 10:53:53 AM
Van het partijprogramma van NVA wat betreft beleggingen, laatste alinea:

N-VA

Groeibedrijven willen we verder ondersteunen door het reglementaire kader inzake privaks, beleggingsfondsen en aandelenspaarplannen te versoepelen, zodat meer investeringen richting niet-beursgenoteerde groeibedrijven vloeien.
Tegelijk willen we Brussel als financieel centrum versterken. Het aantal genoteerde bedrijven op de Brusselse beurs kalft al jaren af. De toegang voor kleine lokale bedrijven tot de beurs moet makkelijker worden gemaakt. Een liquide en sterke beurs en een meer wijdverspreid aandelenbezit leiden tot meer welvaart
We verkopen niet-strategische overheidsparticipaties die niet tot de kerntaken van de overheid behoren. De opbrengst gaat naar schuldafbouw en naar investeringen in defensie, de klimaattransitie (bijvoorbeeld nieuwe kerncentrales) en digitalisering.
Belangrijke belastingverminderingen, bijvoorbeeld in het kader van pensioenopbouw of het ondersteunen van startende ondernemingen, behouden we en bundelen we in duidelijk afgebakende korven. Op die manier zorgen we voor meer fiscale neutraliteit voor sparen, investeringen, beleggingen en verzekeringen.
We willen het spaargeld activeren door de huidige vrijstelling van 833 euro voor dividenden uit te breiden naar alle inkomsten uit kapitaal, zoals bijvoorbeeld inkomsten uit beleggingsfondsen of aandelenspaarplannen.
We zorgen voor meer rechtszekerheid door voor inkomsten uit cryptomunten en andere occasionele inkomsten een vrijstelling tot een bepaald plafondbedrag te voorzien.

Bovendien is de ex minister van financien Van Overtveldt (die opkomt in Europa) een bitcoin hater.
2  Local / Nederlands (Dutch) / Europese verkiezingen, wie zijn bitcoin believers ? on: April 24, 2024, 09:12:58 AM
Heeft er iemand al gevonden welke kandidaten (voor Belgie) er op de Europese lijsten staan die pro-bitcoin zijn ?
3  Bitcoin / Wallet software / Re: Is it possible to convert WIF to seed phrases (BIP39)? on: March 18, 2024, 04:03:14 PM
well i see enough demand for this to make it. we need a standard for 32 bytes -> 12 words thing. So someone then can figure out how to recover this stuff if tool is lost. i think to snoop it from monero, they support phrases from the start.

But better way is this: just to scale base58 lib which now does [0..255] ⇆ [0..57] to [0..2047] ⇆ [0..57]. So we'll have 32 bytes -> base58 of it -> words. it then could be applied to wif or whatever. amount will be not 12 ofc and not fixed

With 12 words you can only encode 16 bytes (128 bits). For 32 bytes you need 24 words. The word list contains 2048 words so 11 bits.
4  Bitcoin / Wallet software / Re: Is it possible to convert WIF to seed phrases (BIP39)? on: March 17, 2024, 01:56:46 PM
If you just want to backup a single WIF key using the word list, that is perfectly possible:

So let's take an example WIF key:
5JphUWRuWJwZktUdGBUmtsazoc1GGuRXFBxoTkJWZGpXjUzXXa7

We recalculate to the hex SEED using base58CheckDecode, this gives us the 32 bytes seed:
84A1A9C49C1257DE2D4FF2EEC4F6CF109E6BE3DF6E075EFB9AD895EFEAB20201

In binary this gives:
1000010010100001101010011100010010011100000100100101011111011110001011010100111 1111100101110111011000100111101101100111100010000100111100110101111100011110111 1101101110000001110101111011111011100110101101100010010101111011111110101010110 0100000001000000001

The SHA-256 checksum of this is:
45F4FD103DAAB39409C60F715E9A4B66D32322C7926ED2364169F232998D5808 or in binary
0100010111110100111111010001000000111101101010101011001110010100000010011100011 0000011110111000101011110100110100100101101100110110100110010001100100010110001 1110010010011011101101001000110110010000010110100111110010001100101001100110001 1010101100000001000

We take the first 8 bits of this hash to add at the end of the first binary bits:
So we add 01000101
and it becomes:
1000010010100001101010011100010010011100000100100101011111011110001011010100111 1111100101110111011000100111101101100111100010000100111100110101111100011110111 1101101110000001110101111011111011100110101101100010010101111011111110101010110 010000000100000000101000101
This is 264 bits length (which is divisible by 11 = 24 words)

Translating this to the BIP wordlist gives us:
lucky ask illness deal century upper release wrestle uphold chicken record cancel trade vehicle laundry science galaxy system renew cloth wrong flip amount chunk

This wordlist can be retranslated to the WIF at any time. It also contains an 8 bit checksum so you know. There is only a 0.4% chance that replacing one word will give you a correct checksum (1 in 256).

5  Economy / Exchanges / Re: MtGox withdrawal delays [Gathering] on: March 17, 2024, 11:57:17 AM
They've started the payments to creditors.

Well, in reality, my first "in fiat" payment received on paypal was at the end of december.

Waiting to receive BTC/BCH.....

Nothing new in the reserved area about new payments incoming.

My fiat only arrived last week in my EU bank account.
They didn't even send an email announcing it ...
6  Economy / Exchanges / Re: MtGox withdrawal delays [Gathering] on: March 13, 2024, 07:50:22 PM
They've started the payments to creditors.
7  Economy / Collectibles / Re: [INFO] ALL ABOUT BITBILLS on: February 21, 2024, 03:24:35 PM
2024 update:

20BTC: 88 (26 intact)
10BTC: 107 (27 intact)
5BTC: 144 (49 intact)
1BTC: 589 (297 intact)

Seems a lot of the 1BTC have been cleaned out.
Intact means the bitbill contains as much (or more) value as indicated on the card.
8  Bitcoin / Bitcoin Technical Support / Re: Check BTC balance programmatically on: February 05, 2024, 02:51:05 PM
The best way to do would be to convert the actual Bitcoin UTXO database into a SQL database so you can search it.
This database is kept on every node but it is a LevelDB database that can only be accessed sequentially.
So you need a translation software to read it.
I made one myself in Java. It takes about 1 hour to convert the full UTXO to a MYSQL database. It's about 24GB large when only a few fields are saved (addresses, balance, block height, txid). It contains 162 million records as of today.

You can then do a quick search to see if a specific address is in the database.
If found you can easily calculate the balance by doing a select count(*).
Running the queries would need a pc with a very fast random access SSD and as much ram as you can spare (think 128 or 256GB).

There's probably a few projects on GitHub that convert the UTXO.

9  Other / Meta / Re: Mixers to be banned on: December 03, 2023, 10:05:18 AM
And what about something liker a Trezor hardware wallet? They now have a built-in service called "coinjoin" which in my view is nothing else but a mixer. So will anything about Trezor also be banned Huh
10  Bitcoin / Bitcoin Technical Support / Re: Verify ownership of keys for paper wallet on: August 13, 2023, 08:34:27 AM
If you have Bitcoin-QT installed you could also simply:
- create a new empty wallet
- import your self-made WIF key
- take a look at the corresponding public key it calculates. easiest way is to enable coinControl features and start a send_transaction to see the list of all public keys.
11  Bitcoin / Bitcoin Technical Support / Re: Verify ownership of keys for paper wallet on: August 13, 2023, 08:29:47 AM
Because there can be other vulnerabilities in your code like your RNG being weak.

If you're using SecureRandom in JAVA that is as strong as it's going to get.
Creating a secure private key is as simple as calling nextBytes on a 32 byte byte[].
The only edge case here is that you have to check for the upper limit of the key.

Creating P2PKH or P2SH bitcoin addresses is NOT that difficult and the number of edge cases is limited.

I believe a self-written, properly tested paper wallet generator is MUCH safer that using whatever you can find on the internet now.
12  Bitcoin / Bitcoin Technical Support / Re: Looking for a way to add extra security on: April 05, 2022, 09:42:42 AM
I see no problem in putting it in a file, but it needs to be done securely.
So do it on an airgapped pc, and install VeraCrypt on it.

Create an encrypted container with VeraCrypt (successor of TrueCrypt), ideally with 2 passwords: 1 standard that is a decoy, 1 that opens the hidden container.
There is no way to tell if this file is an encrypted container, but if forced you can always provide the standard password to give them the decoy files.

Put the file with the keys inside the container. Use a standard .txt file, no need for specials like .doc or .ods. You can also copy wallet.dat files, whatever ...
Dismount the container when done.

This file you can move anywhere even in unprotected places.
Encrypted containers in a dozen places online and offline on usb sticks/cd's offer a reliable backup. It's highly unlikely someone can find every single copy.

Remember: paper or metal backups can be found, stolen or confiscated easily.
13  Bitcoin / Bitcoin Technical Support / Re: NEED HELP WITH 2010 WALLET.DAT FILE on: April 03, 2022, 06:39:04 PM
If you have a 64 character (or 32 bytes) hex private key, convert it as follows to a WIF (which you can import):

Go to web site :
https://www.btcschools.net/tron/tron_tool_base58check_hex.php

fill in the Hex to Base58check 'Hex String:' box with the following
80 followed by the 64 character hex you found

example
0DF741E9FC092A9306881B6B07E93937D17A487062A99C1D2AD21B0C959EBCE4 is the hex string
fill in 800DF741E9FC092A9306881B6B07E93937D17A487062A99C1D2AD21B0C959EBCE4
and get:
Base58 String:   5HvSKY3noCN82Afh3tuagBS1XZwGzr81px2hLDm7B6Nt7RcVefx

This is the private key in WIF format.
Import this in any wallet.

NEVER type it into a blockchain explorer or anything, that will expose it.


14  Bitcoin / Legal / Re: The EU May Vote to Ban Anonymous Crypto Payments on: April 01, 2022, 03:33:47 PM
If you translate this AML crypto bill to a cash payment it would be something like:
In every cash payment the serial numbers of the bills have to be logged together with the ID of the customer.
And: when you get cash out of an ATM the bill's serial numbers are logged to your id.

Crazy.
15  Bitcoin / Legal / Re: The EU May Vote to Ban Anonymous Crypto Payments on: March 31, 2022, 05:23:00 PM
This is what you get when uninformed people get to vote on something. And I'm being generous calling these people uninformed.
More likely they've been lobbied/paid off by the big EU banks.

Every address must be verified Huh
So every time when you send something from a hardware wallet like ledger of trezor and the balance is written to a new address in the same wallet you will have to re-verify that new address ??

It just means that since it is impossible to do this verification, every licensed exchange in the EU will only accept fiat in/out and no longer crypto in/out.
This effectively means that you can no longer make any commercial transfers with crypto, only pure speculative buying/selling of crypto is still allowed.
On top of that all of your crypto must now be held in an exchange, meaning you cannot hold your private keys and when a hack happens you lose everything... very secure indeed. Or when the government snaps its fingers, all you crypto is frozen or simply confiscated.

The current AML crypto regulation violates so many EU privacy laws it cannot really pass in its current form.

16  Bitcoin / Development & Technical Discussion / Creating a paper wallet in P2TR format on: December 25, 2021, 10:14:13 PM
I know how to generate a paper wallet WIF and bitcoin address pair to make a paper wallet in P2PKH, in Segwit en in native Segwit (bc1q).
However I cannot find how to create such a pair with taproot. Only very abstract descriptions seem to be available, nothing in pseudocode, no step-by-step guides how to generate the bitcoin address from a WIF.

Anyone know a link to a guide ?
17  Local / Nederlands (Dutch) / Re: Ervaring met Banken [VL & NL] on: November 15, 2021, 10:08:37 AM
Sowieso, ga ik met mijn lokale kantoormanager/bank proberen een afspraak te pinnen voor ik ga incashen, bij voorkeur face to face, wat bij KBC wel gelukkig kan, om zo klaar en duidelijk te zijn van mijn kant en om mogelijke 'represailles' van hun kant te anticiperen...

Zorg er voor dat voor je gesprek met KBC bank dat je een rekening bij een andere bank hebt.
18  Local / Nederlands (Dutch) / Re: Ervaring met Banken [VL & NL] on: October 13, 2021, 01:41:10 PM
Schrap KeyTrade maar. Ze hebben mijn rekening opgezegd.
Er kwam er overzicht van alles wat ik van crypto exchanges heb afgehaald laatste 3 jaar.
Ze wouden weten van waar dit kwam omdat er geen uitgaande transacties waren naar die exchanges.
Na mijn uitleg dat ik oude historische miner was en de coins uit 2010 dateren kreeg ik direct brief met afsluiting rekening, 2 maanden de tijd.
Ze voeren zelfs geen discussie.
19  Economy / Exchanges / Re: Creditors voting on MTGOX Draft Rehabilitation Plan on: June 07, 2021, 09:24:54 AM
In short the rehabilitation plan will provide following payments:
- cash holders: 100% of their assets back + 6% interest per year.
- BTC holders: around 15% back in the form of money or BTC+BCH

In the last bull run they already sold enough BTC+BCH to do the cash payments.
The cash holders 100% repayment ability due to the high BTC/BCH exchange rate was the reason the rehabilitation process was even possible.
The payments will be done in several steps.

All other coins are lost (BSV, BCHA, BTG, BTA, ...)
20  Economy / Collectibles / Re: [INFO] ALL ABOUT BITBILLS on: May 23, 2021, 06:13:30 PM

Does anyone know how much these go for nowadays?


There was one auctioned off on this forum last year. It was in poor shape since it had been in a persons wallet for a time.
It went for 1.65 BTC.

https://bitcointalk.org/index.php?topic=5218556.0


Pages: [1] 2 3 4 5 6 7 »
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!