Unanswered Questions
427 questions with no upvoted or accepted answers
2
votes
0
answers
120
views
ZMQ hashblock doesn't work
I'm running a full node,
bitcoind .. -zmqpubhashblock=tcp://0.0.0.0:3001 -zmqpubrawtx=tcp://0.0.0.0:3001
rawtx events work great, but not getting any hashblock ones.
Node is fully synced, I can see ...
- 41
2
votes
0
answers
315
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Rolling forward [hash-of-the-block]
can somebody explain me what's the meaning of a Rolling forward after a reindex of the chain in the log of bitcoind?
Thanks in advance
- 119
2
votes
0
answers
73
views
How can I change the bitcoin core version within an already installed blockchain?
I want to change the version in the corresponding
directory with git tag and git checkout vx.y.z.
But when I type git tag there's no output.
How can I change the version without installing the ...
- 872
2
votes
0
answers
172
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What do I tell my company IT dept so they allow my bitcoin core container to connect to other nodes
I work for a corporation therefore work behind a corporate firewall. I login to their vpn then I access company resources like mails, IMs etc.
As a internal team project, I'm trying to setup a btc ...
- 141
2
votes
0
answers
288
views
Pruned Bitcoind Backend for LND with txindex enabled for version > v0.13.0
I'm looking to prune a bitcoind node that will be used by LND.
https://github.com/lightningnetwork/lnd/commit/410b30b9caaf59a78a29d8b924e14395b7daa59d
From the LND commit recently by Kixunil.
Note ...
- 472
2
votes
0
answers
119
views
How to compute deposits from the output of listsinceblock?
I am writing a program that, given the JSON outputs from multiple separate RPC calls to listsinceblock, stores valid deposit transactions in a database and then computes the total deposit for every ...
- 121
2
votes
0
answers
176
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How to accelerate mempool data access with bitcoind
What could I do to accelerate access to the data I get when I call for example: bitcoin-cli getblocktemplate ?
If I would like to be able to be the fisrt one who get information about all the new tx ...
- 21
2
votes
1
answer
469
views
How to build coinbase transaction from bitcoin core?
I am coding a program that connects to bitcoin-qt as local server. For building the blockheader i need the merkleroot, to build the merkle root, i need the coinbase transaction (which is not provided ...
CommunityBot
- 1
2
votes
0
answers
186
views
what is fee_estimates.dat data format?
I'm trying to parse the file fee_estimates.dat.
What is the format of the binary data inside fee_estimates.dat ?
I didn't find any information about it in the dev documentation of Bitcoin.
This is ...
- 121
2
votes
1
answer
155
views
Fully synced bitcoind 0.18.1 on RPI4 using 100% cpu ( 1 core only ) , is it normal?
I started playing with bitcoind 0.18.1 on a RPI4 and i can see that even when fully synced it is still using 100% cpu so one full core.
Is this normal / expected ?
Looking at the threads is the ...
CommunityBot
- 1
2
votes
0
answers
176
views
spend founds from p2wsh address,non-mandatory-script-verify-flag (Signature must be zero for failed CHECK(MULTI)SIG operation) (code 64)
i want spent coin from p2wsh address on btc testnet3 network, i use bitcoinj 0.15.2 build transaction and sign it, use 2/3 multiSig
when i send raw transaction by bitcoin core 0.17.0 command line by ...
CommunityBot
- 1
2
votes
0
answers
120
views
Using bitcoind RPC to identify an incoming transaction that has been replaced using BIP125 Replace-By-Fee
In the context of running a web service that accepts payments in Bitcoin, how can we use bitcoind to identify a transaction that has been replaced using BIP125 Replace-By-Fee?
When RBF is used, a new ...
- 1,451
2
votes
0
answers
111
views
How to get multiple connections to the same node
I'm playing around with connecting my node to another one of my nodes to see how many incoming connections I can handle.
Whenever I add node A from node B with bitcoin-cli addnode 1.1.1.1 add after ...
CommunityBot
- 1
2
votes
0
answers
356
views
Bitcoind zmqpubrawtx notification - Filter out mempool transactions
Bitcoind's zmqpubrawtx seems to notify the subscriber of any transactions that have been accepted to the mempool or included in a block.
Is there any easy way to filter out the mined transactions so ...
- 101
2
votes
1
answer
519
views
LoadBlockIndexDB: transaction index disabled
I'm trying to run bitcoind on a Raspberry Pi 3 but I'm stuck on an error. The raspberry has a Hdd for storage with a fully indexed blockchain that was synced on my laptop and than copied to the Hdd (...
CommunityBot
- 1