Here's some working code using ethereumjs-tx:

const EthereumTx = require('ethereumjs-tx');

const raw = '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';

console.log(new EthereumTx(raw).getSenderAddress().toString('hex'));

If you want to understand how this is done, the ethereumjs-tx source code is a good read. In short:

• The raw transaction is the RLP encoding of a bunch of fields, including r, s, and v.
• r and s constitute a signature, and v is a "recovery parameter," which is needed to recover the public key that created the signature.
• To recover the public key, you need the message that was signed. In the case of transactions, this is the hash of the RLP encoding of the transaction, but with the v parameter replaced with the chain ID and the r and s values replaced with zeros.
• Then you do elliptic curve stuff to retrieve the public key, which I couldn't explain here even if I wanted to. :-)
• An address is Ethereum is the last 20 bytes of the keccak256 hash of the public key.

Here's some working code using ethereumjs-tx:

const EthereumTx = require('ethereumjs-tx').Transaction;

const raw = '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';

console.log(new EthereumTx(raw).getSenderAddress().toString('hex'));

If you want to understand how this is done, the ethereumjs-tx source code is a good read. In short:

• The raw transaction is the RLP encoding of a bunch of fields, including r, s, and v.
• r and s constitute a signature, and v is a "recovery parameter," which is needed to recover the public key that created the signature.
• To recover the public key, you need the message that was signed. In the case of transactions, this is the hash of the RLP encoding of the transaction, but with the v parameter replaced with the chain ID and the r and s values replaced with zeros.
• Then you do elliptic curve stuff to retrieve the public key, which I couldn't explain here even if I wanted to. :-)
• An address is Ethereum is the last 20 bytes of the keccak256 hash of the public key.

Here's some working code using ethereumjs-tx:

const EthereumTx = require('ethereumjs-tx');

const raw = '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';

console.log(new EthereumTx(raw).getSenderAddress().toString('hex'));

Here's some working code using ethereumjs-tx:

const EthereumTx = require('ethereumjs-tx');

const raw = '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';

console.log(new EthereumTx(raw).getSenderAddress().toString('hex'));

If you want to understand how this is done, the ethereumjs-tx source code is a good read. In short:

• The raw transaction is the RLP encoding of a bunch of fields, including r, s, and v.
• r and s constitute a signature, and v is a "recovery parameter," which is needed to recover the public key that created the signature.
• To recover the public key, you need the message that was signed. In the case of transactions, this is the hash of the RLP encoding of the transaction, but with the v parameter replaced with the chain ID and the r and s values replaced with zeros.
• Then you do elliptic curve stuff to retrieve the public key, which I couldn't explain here even if I wanted to. :-)
• An address is Ethereum is the last 20 bytes of the keccak256 hash of the public key.