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Showing 20 of 36 results by coder0x15
hi! you wrote to the author of this script? may be he can help you
https://github.com/ragestack/EC-Point-Operations
https://github.com/ragestack/EC-Point-Operations
You can try this one https://github.com/ragestack/blockchain-parser
⭐ Merited by ETFbitcoin (1)
Theoretically. This is not a mechanism of any kind of attack, but It's about the "lost" coins. May be. It is just for an educational experiment.
What if someone has the ability to send transactions to the each node's memory pool. He have also the ability to send TCP packets from some list of the internet protocol addresses (65533 IPs against 9686 nodes, for example).
He send transactions, but R and S in it's signature are not formed by the such way as they can be formed by the real owner of the private key. Each node needs to get unsigned TX hash and then check it's Sig for to confirm the output's amount spending. It will take some time.
Is it a theoretically possible DDoS attack to [any]coin network? Each node need to verify signature and it takes some time. Provided that attacker has the full UTXO set locally on his [XXXX] machine IPs.
Or IPv6 folds this "problem"? Or what is really means "bitcoin full-node"?
What if someone has the ability to send transactions to the each node's memory pool. He have also the ability to send TCP packets from some list of the internet protocol addresses (65533 IPs against 9686 nodes, for example).
He send transactions, but R and S in it's signature are not formed by the such way as they can be formed by the real owner of the private key. Each node needs to get unsigned TX hash and then check it's Sig for to confirm the output's amount spending. It will take some time.
Is it a theoretically possible DDoS attack to [any]coin network? Each node need to verify signature and it takes some time. Provided that attacker has the full UTXO set locally on his [XXXX] machine IPs.
Or IPv6 folds this "problem"? Or what is really means "bitcoin full-node"?
Re: How to read/parse blockchain and get bitcoin addresses having balance.
Try this https://github.com/normanvolt/blockchain-parser
No installation, no dependencies needed. Just pure Python and the script by the link.
No installation, no dependencies needed. Just pure Python and the script by the link.
Re: A standalone blockchain parser. The simpliest parser that has been ever maded.
A standalone blockchain parser. The simpliest parser that has been ever maded.
I found this script somewhere in reddit.
It makes me busy and happy with my explorations of blockchain.
The script is f**n slow, but he track byte-to-byte structure of raw dumps of bitcoin blockchain.
It is a pseudocode script that can parse whole raw dumps of blockchain.
In now time it realised in Python, but structure of the code is great for rescripting it to at any other languages.
I think it will be usefull for BT users to check it.
May be you want to explore blockchain as pure as you need. So that is what you need.
Here it is -> https://github.com/ragestack/blockchain-parser
It makes me busy and happy with my explorations of blockchain.
The script is f**n slow, but he track byte-to-byte structure of raw dumps of bitcoin blockchain.
It is a pseudocode script that can parse whole raw dumps of blockchain.
In now time it realised in Python, but structure of the code is great for rescripting it to at any other languages.
I think it will be usefull for BT users to check it.
May be you want to explore blockchain as pure as you need. So that is what you need.
Here it is -> https://github.com/ragestack/blockchain-parser
Someone share a standalone Python script that can parse whole raw blockchain data.
Here > https://github.com/normanvolt/blockchain-parser
Check it.
Here > https://github.com/normanvolt/blockchain-parser
Check it.
Re: I can not parse files after blk00975.dat (Bitcoin Core)
⭐ Merited by 2112 (1)
Bitcoin Core download the blockchain to blkXXXXX.dat files.
also there is a parser of blkXXXXX.dat files, which created in compliance with the documentation https://bitcoin.org/en/developer-reference
At the beginning, all files are parsed without errors. Blocks and transactions are correct.
But since the file blk00975.dat in blocks there are some additional bytes, and incorrect transaction headers.
Unfortunately, I can not find any regular features. And the documentation does not say anything about any changes to the protocol.
I tried to completely reinstall Bitcoin Core, installed previous versions, and reloaded the *.dat files .
But all the same, since blk0097X.dat files are not valid on some blocks. And errors can appear in other places after reload.
Have you encountered such mistakes? Is there a way to fix them?
Or is there an alternative way, how else can I download a full blockchain?
also there is a parser of blkXXXXX.dat files, which created in compliance with the documentation https://bitcoin.org/en/developer-reference
At the beginning, all files are parsed without errors. Blocks and transactions are correct.
But since the file blk00975.dat in blocks there are some additional bytes, and incorrect transaction headers.
Unfortunately, I can not find any regular features. And the documentation does not say anything about any changes to the protocol.
I tried to completely reinstall Bitcoin Core, installed previous versions, and reloaded the *.dat files .
But all the same, since blk0097X.dat files are not valid on some blocks. And errors can appear in other places after reload.
Have you encountered such mistakes? Is there a way to fix them?
Or is there an alternative way, how else can I download a full blockchain?
Try this one > https://github.com/normanvolt/blockchain-parser
If you want to list all transactions from a blockchain, you need a block parser (and I've mine too, but it is closed source).
@starmyc please can you share the link to download that closed-source blockparser?
I will, someday. Still need to clean up the really crappy code.
@starmyc is any idea for to make some cool stuff? Not only –Chainstate LDB API caller–. I made ldb files parser without of any APIs and third-parties frameworks. Only hardcore, only raw decoding.
P.S. Obfuscated keys are strong for unequipped user
P.S. Obfuscated keys are strong for unequipped user
If you want to list all transactions from a blockchain, you need a block parser (and I've mine too, but it is closed source).
@starmyc please can you share the link to download that closed-source blockparser?
@starmyc, can you tell, you use https://github.com/mycroft/chainstate to parse chainstate db? Or you work with full blockchain database?
I found only one tool for to make bitcoin database files readable. https://sourceforge.net/projects/bitcoin-database-viewer/
This tool is in a demo mode but for my needs it works perfect! It is a simple converter of *.blk file to *.txt, works perfect like AK47
This tool is in a demo mode but for my needs it works perfect! It is a simple converter of *.blk file to *.txt, works perfect like AK47
Any of a kind Bitcoin wallet need to share private key on the internet-connected machine.
Bitcoin client has no responsibility for to keep private key secure. If your's machine connected to the internet, your keys can be hijacked, because your machine can be hacked before you import keys.
The questions is, how to trust any of existing crypto-wallets to store private keys?
P.S. My answer is "no trust" to all of them.
Bitcoin client has no responsibility for to keep private key secure. If your's machine connected to the internet, your keys can be hijacked, because your machine can be hacked before you import keys.
The questions is, how to trust any of existing crypto-wallets to store private keys?
P.S. My answer is "no trust" to all of them.
yes, i can do Base58 to ripemd160
You do not understand anything what you are talking about.It is possible in the one way, when you know ripemd160 and make base58. Not versa)
Or you invented reverse method?
Hi @btctousd81! Please tell what tool you use for to create such database?
please check this
https://bitcointalk.org/index.php?topic=267618.msg28087082#msg28087082
What bitcoin-tool you use to get 'address to hash160'?
You working using bitcoind rpc, not directly with blockchain disk data?