Understanding Bitcoin: Unissued Multisig Transaction Broadcast Error
As a Bitcoin developer, you are probably familiar with the intricacies of multisig transactions and broadcasting. However, when you encounter an error like “Unissued Multisig Transaction,” it is essential to troubleshoot the issue.
In this article, we will dive deeper into the causes of this specific error and provide guidance on how to fix it using a script that evaluates without errors but ends with a false/empty top stack item.
What is a Multisig Transaction?
A multisig transaction is a Bitcoin transaction that requires three or more signatures from the sender to be broadcast. This ensures that only the sender can spend funds, preventing others from intercepting the transaction and spending them on behalf of the sender.
The Problem: Broadcast Error with False/Empty Top Stack Item
When a script runs without error but ends with a false/empty top stack item, it means that the Bitcoin network is broadcasting the transaction, but the result has incorrect or incomplete data. This can lead to several issues, including:
- Invalid Transactions: The transaction may contain invalid or incomplete information, such as insufficient funds or incorrect sender addresses.
- Network Errors: Broadcasting a transaction riddled with errors can cause problems with the Bitcoin network, leading to delays, congestion, or even network-wide failures.
The Error: Multisig Transaction Not Broadcasting
In this specific case, the “Multisig Transaction Not Broadcasting” error likely indicates that a script is being evaluated without being executed correctly. This can occur due to a number of reasons, including:
- Incorrect script syntax
– The script may contain errors in its syntax, causing the build to fail.
- Missing or incorrect dependencies – The script requires specific dependencies that are missing or incorrectly implemented, resulting in the error.
- Improper input validation – The script fails to validate user inputs correctly, resulting in unexpected behavior or errors.
Troubleshooting steps
To resolve the “Multi-Sig transaction is not transmitted” error using a script evaluated without errors but terminated with a false/empty top stack item:
- Verify script syntax and dependencies – Verify that the script is syntactically correct and that all required dependencies are implemented correctly.
- Validate user inputs – Ensure that the script validates user inputs correctly to avoid errors or unexpected behavior.
- Test the script thoroughly: Run the script in a test environment with minimal data to identify any issues before broadcasting it on the mainnet.
- Use a debugging tool: Use a debugging tool, such as the Bitcoin Debugging Tool (BDD), to inspect the transaction and its output.
Script Evaluation Example
Here is an example of a multi-sig script that may display the error “Multi-sig transaction not broadcast”:
“`javascript
// Set the sender address
let address = “2NDiRgpVVQ3CtYMi962myja69pFW8VSJ9Yp”;
// Define recipient addresses and funds
let receiver1Address = “XyFzV8gNkWkP8r4f6VqVpT7KbD2zUeV8p”;
let receiver2Address = “3PcYwQJnZ9LmT1C7aP5JdRqBvUqZFjG8P”;
// Define the multi-sig script
function multiSigScript() {
// Create a new transaction
let tx = {
sender: address,
receiver: [recipient1Address, receiver2Address],
funds: [12345]
};
// Sign the transaction with all required addresses
let signatures = [];
for (let i = 0; i < tx.recipient.length; i++) {
let signer = tx.recipient[i];
for (let j = 0; j < 3; j++) {
let signature = new Web3_signature();
signature.sign(tx, signer);
signatures.