Ethereum: Reading a Bitcoin raw transaction

Understanding Ethereum’s Raw Transactions using JSON Format

As an enthusiast of cryptography and blockchain development, it’s essential to grasp the inner workings of Bitcoin transactions, particularly when it comes to raw data structures. In this article, we’ll delve into the details of Bitcoin’s raw transaction format, specifically focusing on its JSON representation.

Bitcoin Transaction Structure

Bitcoin transactions are composed of various components, including:

• Transaction ID: A unique identifier for the transaction.

• Type: The type of transaction (e.g., send, receive, split).

• From: The sender’s address.

• To: The receiver’s address.

• Value: The amount being transferred.

• nonce

  : A random number used to verify the transaction’s validity and ensure that it hasn’t been tampered with.

• locktime: The block timestamp when the transaction is locked (i.e., not yet confirmed).

• sequence: An integer incrementing for each transaction in a batch.

JSON Representation of Bitcoin Transaction

The JSON representation of a Bitcoin transaction looks like this:

{

  "txid": "1...", // transaction ID

  "type": "send", // type (e.g., send)

  "from": {

    "addr": "...", // sender's address

    "key": "...", // sender's public key

    "pubkey": "...", // sender's public key hash

  },

  "to": {

    "addr": "...", // receiver's address

    "key": "...", // receiver's public key

    "pubkey": "...", // receiver's public key hash,

  },

  "value": {

    "amount": 1.00, // transaction amount in satoshis (e.g., 1 BTC)

    "unit": "satoshis" // unit of the transaction amount

  },

  "nonce": 1, // random number to verify transaction validity

  "locktime": 1500, // block timestamp when the transaction is locked

  "sequence": 100, // incrementing for each transaction in a batch,

}

In this example, which has six main properties:

• txid: The transaction ID.

• type: The type of transaction (in this case, send).

• from and to: The sender’s and receiver’s addresses, respectively. Note that these are arrays containing individual address objects.

• value: The transaction amount in satoshis (e.g., 1 BTC), along with its unit (in this example, “satoshis”).

• nonce, locktime, and sequence: These properties are used to verify the transaction’s validity and ensure that it hasn’t been tampered with.

Conclusion

Understanding Bitcoin’s raw transactions using JSON format is essential for grasping the inner workings of the blockchain. By analyzing the structure of a specific transaction, we can gain insights into the data being exchanged between parties on the network. In this article, we’ve provided an overview of the JSON representation of Bitcoin transactions and demonstrated how to parse these structures.

Additional Resources

• Blockchains.info API documentation: <

• Ethereum API documentation: <

Note: The above example is for illustration purposes only. Do not attempt to reproduce the actual transaction data without proper authorization and permission from the sender or recipient.

Disclaimer

This article is intended for educational purposes only and should not be used for malicious activities, such as attempting to forge transactions or compromise security. Always ensure you have the necessary permissions and follow best practices when working with blockchain data.

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