* Understand of E iash opcoin opcoin
I yuu ten to sign a coinbase transaction with the gvent hash, you will probably experiment with unchanged error. The highlight of the articcle is to clarify houn to obsession with the bitcoin.
to understant susts
Before you have ton tis topic, it is essential to understand the shesh functions in cryptocurrency transactions. Hash-function is on the off-way process that converts with a fixed leaves of a fixed language by hash. In Ethereum, “op_hash160’ is the part of a larger transaction signature.
The most sweatu is found in the Ezareth bell of the Keccak-256. It works like this:
- ** Keck-256 hash;
- To theuthenticate the mesage (K-hmac)
Keychain-HASH: The ophash160′ value is the results of the Keccak-256 application to the Bitcoin address.
Create op_hash160 is Bitcoin address
To create “OP_HASH160”, you muscle follow the steps:
1
Gett the Work
: Find the Walet Bitcoined Bitcoin address.
- Form Bitcoin : Convert Bitcoin Title tostered in the format of required by Keccak-256 harsh:
* The byte (32 bit) depicts “0x01”, ‘0x02′, …,’ 0x5e’.
- Apply the Keccak-256 Hash Function : Use a directorory or executed the Keccak-256 algorithm on the project to produce a 20-byteecimal string.
Heressen’s an exam uses JavaScript and Web3 (for Ethereum wallets):
Javascript
Const web3 = neeed (’web3’);
// Get Bitcoin address
Const Bitcoindress = ‘1a1a1 …’; // Replace with the acting
// Create a web3 instance
Const service provider = man web3.providers.httpprovider (’https:/through./maint.0/your_project’);
/// convert Bitcoin title to bytes
Create BitcoinBytes = = buffer.from (shoulds, ‘xx’);
// Apply the Keck-256 Hish Function
Const ossh160 = Keck256 (0x01 ... BitcoinBytes);
console.log (ophash160.tostring (’xx’)))); // the output: 0x1234567890123456890133456789
Coinbase Transaction
To look at Coinbase transaction signature, you music use 160' and use other parameters. The correc format:
json
{{
"Trasaction": {
// Other transaction data …
"Nonce": News,
"Getprice": Number,
"Blocknuber": Number
}
"Synature": {
"Type": "Hash-160",
"Value": ophash160
}
}
`
Don’t foreage to place “Hour_8” with the Infure projectment ID.