All Questions
Tagged with hash transactions
66
questions
-2
votes
1
answer
29
views
Problem identifying the transaction hash for a new segwit uxto wallet
How do I the transaction id or transaction hash of a new segwit wallet I just created and sent tokens to? The transaction hash I see from blochian.info refers to the hash of the previous transaction.
...
1
vote
1
answer
302
views
Structure of a bitcoin transaction, in particular the link to the previous transaction
I'm reading 'Blockchain and distributed ledgers' by Alexander Lipton and Adrien Treccani.
I'm trying to understand how individual transactions are linked together.
On page 338, they give the 'details ...
- 113
0
votes
1
answer
265
views
Repeating identical outputs in bitcoin transaction
I am building a script that is indexing all bitcoin transactions in real time with all their details etc. But I am looking here at this transaction - https://www.blockchain.com/btc/tx/...
- 27
-1
votes
1
answer
134
views
How can i achieve this signature?
I want to make a signature in bitcoin where the nonce and private are the same. For example, the private key is 0x1000 and the nonce for the R value is also 0x1000
- 3
3
votes
0
answers
63
views
How to calculate the hashes in Lightning
I was wondering how I calculate the hashes regarding BOLT03 Specification:
The Revocation Pubkey is calculated like this:
revocationpubkey = revocation_basepoint * SHA256(revocation_basepoint || ...
- 51
-3
votes
3
answers
752
views
How to forge a signature with fixed Z value
I want to forge a signature with a fixed z value, what is the formula to do that
- 1
2
votes
2
answers
125
views
why do we need to hash before we use a private key to digitally sign a transaction? isn't just using a private key enough?
why is a hash needed for digital signatures? isn't it redundant since the point of hashing is to ensure contents are not tampered with , which the digital signature can do as well (on top of ensuring ...
- 77
1
vote
1
answer
3k
views
Invalid transaction. Error: TX decode failed. Make sure the tx has at least one input
I'm using bitcoinlib for python to create a transaction and send it but I'm getting the following error:
Funds not sent, exception error: Error connecting to blockchair on url
https://api.blockchair....
- 121
-3
votes
2
answers
3k
views
How to derive the Private key when the two the nonces are k and k*2
Is the same private key using k and k*2 respectively in two different signatures vulnerable?
If yes How to calculate the key in this case
Here is an example, Both signatures are valid and the nonce of ...
0
votes
1
answer
35
views
Detecting BTC transaction hash data: help
please I need some help in reading the hash data correctly.
Given below transaction of total value btc 1.55821903
https://www.blockchain.com/btc/tx/...
- 1
0
votes
0
answers
121
views
BTC invalid transaction: double spending attempt?
I'm writing because I need some help in understanding the below hash data. Thank you.
https://www.blockchain.com/btc/tx/976e6d64a4c98cf15ac917b98a04333f896b7cd15c1f2fdfb18f6fee668b670c
Is it a double ...
- 1
1
vote
1
answer
287
views
Bitcoin Core ZMQ "hashTx"
Bitcoin Core ZMQ messaging system has hashtx along with 4 other topics. But nowhere it is documented whether the transactions that comes from hashtx are confirmed transactions which are added in a ...
0
votes
0
answers
194
views
Parsing transaction hash from rawblock data
I got block raw data next url
https://blockchain.info/rawblock/00000000000000000002447735c7723ee9188322c0938e6587866a4458b9135f?format=hex
Can I find transaction hash in url used python?
- 21
0
votes
1
answer
794
views
How do miners earn partial bitcoins?
I know that the miner who has the hash matching with the bitcoin's root software gets to stamp the block and put it onto the blockchain (correct me if I'm wrong). Accordingly, that miner takes the ...
- 11
3
votes
1
answer
71
views
How does the daemon get a transaction via a hash
I am wondering how the daemon gets the transaction data from just a hash. I'm NOT asking how i can get it, i know i can get it via the rpc, i am asking how the daemon does it behind the scenes. Does ...
- 362