Community Digest

Top new questions this week:

If you have the required mining power, is it possible to mine your transaction in the next block without propagating it to the network?

Let's imagine that you have 51% of all mining power. Is it possible to put a single transaction in the next block without putting it into the mempool and/or propagating the tx to the other peers ...

transactions mining-pools mining-theory mempool  
user avatar asked by Efe Score of 8
user avatar answered by Vojtěch Strnad Score of 8

bitcoind still running after 'bitcoin-cli stop'

I'm running Debian 11, all updates installed. 12gb RAM, massive internal SSD for storage. $ /usr/local/bin/bitcoin-25.0/bin/bitcoin-cli stop has worked well shutting down bitcoind on my computer until ...

bitcoind  
user avatar asked by Lilacrail Score of 3

Bitcoin core shutdown after running for about 1 day

I have my bitcoin core daemon up and running on Ubuntu. However it always stops after running for serveral hours or 1 day. Here's the debug.log before it stopped. 2023-11-23T18:04:42Z [net] Saw new ...

bitcoin-core  
user avatar asked by daniaoren Score of 3

Are all transactions, whether SegWit or non-SegWit, part of the commitment in a coinbase transaction?

A merkle root in a block header is a way to commit all transactions in that block. However, since it does not cover transaction witness data, another commitment needs to be made in a coinbase ...

segregated-witness coinbase-transaction merkle-tree witness-commitment  
user avatar asked by LeaBit Score of 2
user avatar answered by Pieter Wuille Score of 3

Lost bitcoin in a blocked transacion

I was trying to transfer some bitcoins from my bitcoin core wallet to another online wallet. I did this transaction like 3 weeks ago. and I think I have lowered too much the fees. The transaction was ...

bitcoin-core unconfirmed-transactions lost-transactions  
user avatar asked by Fabrizio Bitti Score of 2
user avatar answered by Vojtěch Strnad Score of 1

What would happen if we provide to OP_CHECKMULTISIG more than threshold number (m) of signatures?

Asked here but still no answer. What would happen if we provide to OP_CHECKMULTISIG opcode more than threshold number (m) of signatures? For example, if the m = 3 and n = 6 and the output script is: 3 ...

script multi-signature  
user avatar asked by Mudja Adjum Score of 2
user avatar answered by Pieter Wuille Score of 3

Certain spent P2PKH outputs give error: Non-canonical DER signature

Certain rare spent P2PKH outputs give error: Non-canonical DER signature when I try to verify the spent output using both btcdeb (version 5.0.24) and bitcoinconsensus (version 0.20.2, using Rust ...

signature transaction-verification p2pkh  
user avatar asked by Alec Matusis Score of 1
user avatar answered by Pieter Wuille Score of 4

Greatest hits from previous weeks:

Is there any way to buy bitcoins online without a fee?

I'm new to bitcoins, and my experience is from something like E*Trade buying on the NASDAQ, so that's my frame of reference. I paid a small broker fee for every buy or sell, and I trusted the exchange ...

exchanges buy-bitcoins exchange-fees  
user avatar asked by toddmo Score of 21
user avatar answered by tobixen Score of 11

How do I calculate the value of some amount of bitcoins in my native currency?

If I know the exchange rate, how can I calculate the value of some amount bitcoins in my native currency?

exchange-rate  
user avatar asked by Exploit Score of 2
user avatar answered by jgm Score of 3

Is it safe to store all my coins on Coinbase?

Is it safe to store my coins (BTC & ETH) on the Coinbase platform or is it safer to download a wallet to keep them in?

wallet security exchanges  
user avatar asked by Coffey Score of 8
user avatar answered by marshal craft Score of 6

Where can I see my Bitcoin address?

I use the original client, but I don't know where can I find my Bitcoin address. Can someone help me?

bitcoin-core address  
user avatar asked by Rowt Score of 5
user avatar answered by ThePiachu Score of 4

What is a 'Satoshi'?

I am aware that Satoshi Nakamoto is the author of the paper that originated Bitcoin and the creator of the original bitcoin client. However, I often hear the term Satoshi as if it was a monetary unit. ...

terminology satoshi-nakamoto satoshi divisibility  
user avatar asked by nmat Score of 158
user avatar answered by Michael McGowan Score of 157

How to unstuck a low-fee transaction with blockchain.info?

I've sent a transaction from blockchain.info, but accidentally included too little fee. What can I do to cancel the transaction or speed up the transaction's confirmation? This is a complementary ...

transaction-fees blockchain.info unconfirmed-transactions canonical-question  
user avatar asked by Murch Score of 45
user avatar answered by tobixen Score of 36

What is the Merkle root?

The Bitcoin wiki Vocabulary article explains why the Merkle root exists: Every transaction has a hash associated with it. In a block, all of the transaction hashes in the block are themselves ...

transactions blockchain database merkle-tree  
user avatar asked by Steven Roose Score of 62
user avatar answered by David Ogren Score of 64

Can you answer these questions?

How to organize a lightning node so that the liquidity is self balancing?

Does anyone here know a method to organize a lightning node so that it becomes self balancing? By self balancing I mean that the liquidity is "mostly" balanced so that transactions flow in ...

lightning-network ln-channel-balance-management  
user avatar asked by Orange_Bitcoin Score of 1

sweep 52 Character private key beginning with L

I'm trying to sweep an unencrypted private key, created with bitaddress.org 4 years ago into, Electrum. I also gave these to family with small amounts on, so need to figure this out before I go down ...

private-key private-key-import sweep private-key-format  
user avatar asked by Mark Score of 1

Indexing Spent UTXOs

I want to do analytics on bitcoin data and for this I would need to be able to check in what tx a spent UTXO is spent. For this Im going to index all spent UTXOs in a database and I need help with ...

utxo database  
user avatar asked by bittzz Score of 1
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