Bitcoin: Which SIGHASH type we have to append at the end of the trimmed transaction in OP_CHECKSIG

Understand the types of Sighash Bitcoin and their applications

Bitcoin, a decentralized cryptocurrency, is based on a variety of cryptographic methods to provide safe and transparent transactions. An important aspect of these transactions is the use of types of hash (sighash) of signs, which are used to test the scripts of entry into the context of Bitcoin.

In this article, we will enter the SIGHEH type in the world, its importance in the process of validation of the Bitcoin transaction and we will give instructions on how to determine what type of transaction inverted at the end of the entry script during the inspection.

Types of Lolermas

Bitcoin transactions are divided into two categories: signed and without signing. Signed transactions have signed scripts using the hash type (Sighash), while unpleasant transactions do not include any script firm.

The primary sighs used in Bitcoin transactions are:

• Sighah Zero : This type indicates that the transaction is not signed.

• Sighash One : This type provides verification of the input script, allowing the miner to confirm the content of the transaction.

3
Selvel Three : like Sighash One, but with a higher block size limit.

Cutted transactions and input script verification

Input scripts during inspection, the inverted transaction is discharged in several stages before confirming the miners:

• Test : It is verified if there are no errors or non -valid data.

• Input script check : If the reverse transaction has an input script, they are verified using the types of purchases.

When determining what type of sigh will be added at the end of the inverted transaction, we must take into account the following factors:

* The signature of the transaction

: The presence and content of the transaction firm (also known as “Sighash Zero” firm) will indicate whether the entrance scripts are enabled.

* Input scripts : If the transaction has input scripts, they will be verified using Sighash One. Each script must be an adequate private key to verify the input scripts.

* Block size limit : The maximum block size limit (currently 2 MB) established by the network will determine what type of sigh is allowed.

Example: Understand the example of the transaction

Suppose we verify an example of a transaction:

`JSON

{

"Version": 2,

"Txid": "ABCDEF123",

"Vout": [1, 2],

"Locktime": 100000,

"Confirmations": 10

}

In this case:

• The version field (2) indicates an unprofession transaction.

• There aretxid, `andlocking block ‘fields, which means that entry scripts are enabled.

• The “approval” field (10) also confirms that the transaction is valid.

To determine what type of sigh adding to the end of this reverse transaction during verification:

• Verify that the transaction firm is the firm “Sighash Zero” (that is, not signed). In this case, we assume that the transaction is really without signing.

• Verify the presence and content of the input scripts verifying the Vout field.

According to our analysis, since the transaction has input scripts (Vout), we must add Sighash to enable the input script test to enable the input script.

Conclusion

In conclusion, when determining what sighs at the end of an inverted transaction, Bitcoin for input scripts implies the considerations of several factors, including the presence and content of the transaction signature, the input script and the limits of the blockade. By understanding these concepts, you can provide a safe and transparent transaction in the Bitcoin network.

Remember to consult the official documentation for more details about the types of sighs, transaction proof processes and other relevant issues related to Bitcoin.

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