All Questions

I'm trying to calculate SegWit transaction fees in bytes, I have two Segwit inputs and 2 segwit outputs. can anyone calculate this transaction fees if I'm paying 100 Sat per byte?

TWO questions on Neutrino:: 1) Could Neutrino technically as side-effect, incentivize centralization of the bitcoin network? Or other formulation: ...hinder higher degree of decentralization? Why ...

Trying to understand how grouped transactions work, I came accross the following transaction on blockchain.com : There are many senders, and even more receivers. For instance, the first sender on the ...

I have an xpub key with which I want to generate all addresses which have been used or will be used and then find out the keys which have balance. Here's a sample xpubkey with balance- ...

If I remember / understand it correctly by using the mechanisms from the scriptless scripts paper we could easily create homomorphic preimages / paymenthashes. I think this would be a very desirable ...

Hi, I have a serious issue as this transaction is successful but the recipient insists that it's not in her wallet neither did she get any sort of confirmation about the transaction, I have been ...

I came across this transaction and noticed that there's duplicate address for the output part. https://live.blockcypher.com/ltc/tx/ada86c7d6f46f712bfa04982f17ce9cd9d4c2560e3493de9c22f8b135ece6cb9/ ...

I can't find the python file to create the rpc credentials. According to the documentation it should reside somewhere here: using the output from the script in share/rpcauth/rpcauth.py

Let’s have 2 transactions. The second one is duplicating Input of the first one. Both have very high fees so they are selected by miner to be included in the same block but before passing validation (...

I am new to bitcoin. I opened an account with Coinbase and also an account with Blockchain. I transferred about $35 worth bitcoin from Coinbase to an address I generated from my Blockchain wallet. ...

I have made a transaction and paid like 120 sat/B, on blockchain it says that I've paid 78.995 sat/B and noticed that transaction size is 191 (bytes) Transaction size supposed to be: 102 (input) + ...

I wrote a bitcoin core parser, for my personal project and because it helped me to start understanding the bitcoin protocol as a data structure. This project mainly parsers every blk file and creates ...

I sent some (worth around 1000usd) bitcoins to one of my wallets and doesn't remember which wallet it was. Now I'm checking wallet and seeing balance is still there. Can somebody tell me how do I see ...

I'm unsure how Proof of Stake prevents double spending. In PoW it's evident that I need 51% of the hashing power of the network, to "overtake" the real chain with my fraudulent fork. But what stops ...

How can a wallet using ripple-lib to interact with the ledger be certain it is seeing the real consensus ledger? If an attacker has control of the rippled server, or the connection to it, what is to ...

Simple question but I couldn’t find the answer anywhere. What’s the 65 bytes version of those public keys ? 0229b3e0919adc41a316aad4f41444d9bf3a9b639550f2aa735676ffff25ba3898 ...

BIP 157 and BIP 158 are both concerned with Compact Block filters. What is the distinction between them, and which of them does Bitcoin Core currently support?

Simple question but I couldn’t find the answer anywhere. Is there something like using several inputs and outputs in Bitcoin ?

I recently had this problem IRL: tried to pay in a coffee shop with LN, but my channel partner was "sleeping", so after a while I paid in cash. Then, 5 min later, the server comes back online, the LN ...

I am looking for a cryptocurrency payment processor that can be integrated easily with Angular (without need of backend / backend parameters like callback/IPN/OrderID etc) For FIAT, Paypal is there : ...

I want to do analytics on unilaterally and mutually closed channels. To do so I need to scan know when channels close. It seems to me there's no other way than to actively scan the network graph for ...

I have two client Bitcoin, 0.17.0 and 0.12.0 and I want to see the difference between the same transaction. 0.17 has segwit, 0.12 doesn't have. If I do that RPC call in 0.17.0 /bin/bitcoin-cli -...

I am writing an in-depth article about the Lightning Network. I want it to be comprehensive and balanced, educating people on the state of LN, how it works, as well as on current internal debates over ...

What are the weaknesses we face with lightning routing currently? How many nodes do we expect it can handle now? What is being done to make it scale in the future?

As i've read on many websites and papers, the bitcoin address is made by hashing the public key. And i've read that that's done because we don't want the public key to be public until money is spent. ...

In stock market we can know in advance that in certain moments there can be some great movement to one of the sizes. For example, on Gross Domestic Product (GDP) announcements. Are there some special ...

I've seen the 2019 videos about this website so I'm sure no one has asked. With that said I would like to know can websites like this one make a living off traffic and handing out crypto? Please help ...

I'm building a service prototype by reusing Electrum code and generated 4 consequent transactions which are CPFP type on the testnet. They are staying unconfirmed for several hours but test ...

I have read during the last year about some very interesting BIPs or initiatives. I am not asking for their explanations, just would be great if anyone would know about their simple status as of now, ...

It was well known that initially while SegWit got more than 50% of hashrate after activation that a part of the mining pools refused to implement it. But are there still blocks being mined by miners ...

I have found these but each one has a problem: Cobinhood. Very low liquidity. Daxico. It does not look trustable. Zaif. They are not allowing new accounts. Liquid.com. It use to be free, not anymore....

I used a packet capture to capture the transaction of bitcoin, and I got the following: ...

I'm studying the bitcoin protocol and I don't have very clear things, for example the logical thread that exists between an output transaction and a subsequent input transaction, where that output is ...

Please can I receive BITCOIN from (Panama Florida) to my Nigeria BITCOIN wallet.. Someone in panama city Florida will be buying and sending me 600$ worth of Bitcoin. She haven't create the account ...

How do I get the pool to pay me the accepted shares ?

Since it’s not possible to know mining pools nodes addresses, how do we know the that a specific node owing 15% of share belongs to btc.com for example ?

I'm aware that when the hash of the block header (block hash) is below the difficulty target, a block is deemed as validated. But because I've never run a bitcoin node before (will soon), I had a ...

Script's stack operations are used to validate signatures and scripts of transaction inputs and outputs. Is Script also used to validate block, network, or any other data? Seem like there are a lot ...

There are many website like https://bitnodes.earn.com/ but I’m failing to understand if they collect nodes from compulsory submission on the web interface for statistics purposes only or they use a ...

In main.h (line 17) we have a constant MAX_SIZE static const unsigned int MAX_SIZE = 0x02000000; which in decimal format equals to 33554432 (32MB) This constant is used to verify if the block ...

I just wanted to confirm, is it true that for a bitcoin (public) address it should always have a '1' in front of it. For certain transactions though I see that there is a '3' in front. How is this ...

I've starting doing some researches about the Bitcoin protocol and the blockchain. I'm trying to understand all the sections in the Bitcoin white-paper. So far, i couldn't understand what is the ...

Everyone knows this famous fix for block 74638 which still exists in other files. But there’s something I can’t understand, why check for inputs overflow since it’s not possible to have enough utxo ...

After the recent two chain reorgs taking place in Bitcoin Cash SV, I am finding a number of developers stating that large blocks are the reason for the reorgs: "Almost each time someone is trying to ...

Need to determine bitcoin percentages in PHP. I'm using this function: $bitcoin_price = "0.01096616"; $percentage = (3.9 / 100) * $bitcoin_price; echo $percentage; My result is 0.00042768024 from 3....

I was aware that the Genesis block's reward was unspendable, and that there was no UTXO for it in the UTXO Set. I thought that this was due to the Genesis block being hardcoded and the actual ...

I'm developing a parser bitcoin core and I have a problem whit the type CVarInt, I using the decodifier mode of the CCompact size but at the block 976 I Have a problem whit the type, because the value ...

I mean running themselves in a computer they control and not just fetching blockchain data from a public blockchain API or something like that. I imagine that may be impossible, but there could at ...

I want sendRawtransactoin to the testnet ,bug i got "18: bad-txns-inputs-spent" My input is unspent on the Testnet ,Help ! { "Version": "1", "LockTime": "0", "Vin": [ { ...

Is there a iOS bitcoin HD wallet with Bech32 support and access to your extended public and private keys out there?