Bitcoin

What if I change PubKeyHash in scriptPubKey of a transaction to my PubKeyHash?

What if I change PubKeyHash in scriptPubKey of a transaction to my PubKeyHash?
  1. What is ScriptSig and ScriptPubKey?
  2. What is ScriptSig in bitcoin transaction?
  3. What is input and output in bitcoin transaction?
  4. What is signed in a bitcoin transaction?
  5. What are Utxos in a bitcoin Blockchain?
  6. What is scriptSig?
  7. How do I track bitcoin transactions?
  8. Can you send bitcoin to multiple addresses in one transaction?
  9. What will happen if we put in only one transaction inside a block?
  10. How do I fix unconfirmed Bitcoin transactions?
  11. How many transactions can Bitcoin handle?
  12. Why does my Bitcoin transaction have two outputs?
  13. What is Bitcoin transaction change?
  14. What happens when I make a Bitcoin transaction?

What is ScriptSig and ScriptPubKey?

The ScriptPubkey is the data structure that defines kind of a lock, and the ScriptSig is the data structure that defines the unlocking key. ScriptSig is present inside the transaction input, and ScriptPubkey is extracted from the previous transaction output that this input attempts to unlock.

What is ScriptSig in bitcoin transaction?

The ScriptSig is the part of a transaction which contains the required signatures and the script which unlocks a UTXO for spending. The ScriptSig is only present in legacy Bitcoin transactions. ... In SegWit transactions, the ScriptSig is removed from the transaction body and called the Witness Script.

What is input and output in bitcoin transaction?

There are three key variables in any bitcoin transaction: an amount, an input and an output. An input is the address from which the money is sent, and an output is the address that receives the funds. Since a wallet can contain several input addresses, you can send money from one or more inputs to one or more outputs.

What is signed in a bitcoin transaction?

We define a bitcoin as a chain of digital signatures. Each owner transfers bitcoin to the next by digitally signing a hash of the previous transaction and the public key of the next owner and adding these to the end of the coin. A payee can verify the signatures to verify the chain of ownership.

What are Utxos in a bitcoin Blockchain?

The term UTXO refers to the amount of digital currency someone has left remaining after executing a cryptocurrency transaction such as bitcoin. The letters stand for unspent transaction output. Each bitcoin transaction begins with coins used to balance the ledger.

What is scriptSig?

A scriptSig is an input script that unlocks funds commited the refferenced transaction output. It contains one or more signatures and other informatioin that is needed to satisfy spending condition defined in the output.

How do I track bitcoin transactions?

To look up a bitcoin transaction, users can visit https://www.blockchain.com/explorer and use the search bar on the upper right to learn more about a particular bitcoin address, transaction hash, or block number by entering it in the search field. Once you click enter, information about your search query will display.

Can you send bitcoin to multiple addresses in one transaction?

Yes you can. Most bitcoin transactions have a second recipient address for change from the transaction. However you can have multiple other recipients as well. Here is a link to the official documentation explaining how to do so with bitcoinj.

What will happen if we put in only one transaction inside a block?

Each block is valid in it's own right, but eventually only one can be included in the longest chain, and the other will become an 'orphan block'. The chain itself will become super slow.

How do I fix unconfirmed Bitcoin transactions?

If RBF isn't an option due to the wallet you use, you'll need to go down the double spending route. This entails creating a new transaction the exact amount of the unconfirmed original. So, you basically just send the transaction again but select a higher fee this time.

How many transactions can Bitcoin handle?

The current Bitcoin block generation time is 10 minutes; i.e., every ten minutes, a new block is mined. In ten minutes (600 seconds), Bitcoin can average around 2,759.12 transactions based on previous assumptions. In other words, the Bitcoin blockchain can currently guarantee only 4.6 transactions per second.

Why does my Bitcoin transaction have two outputs?

If multiple inputs are associated with one bitcoin transaction, this means that the amount being sent is coming from multiple bitcoin wallet addresses. ... As you might expect, multiple outputs indicate a bitcoin transaction has been sent out to be split over multiple addresses.

What is Bitcoin transaction change?

Sometimes the coin value of the output is higher than what the user wishes to pay. In this case, the client generates a new Bitcoin address, and sends the difference back to this address. This is known as change.

What happens when I make a Bitcoin transaction?

Bitcoin makes use of public-key cryptography to ensure the integrity of transactions created on the network. ... Using the private key associated with their bitcoin, a user can sign transactions and thereby transfer the value to a new owner. The transaction is then broadcast to the network to be included in the blockchain.

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