3 min de lectura
Bitcoin: Checksum of addr() descriptor
CRYPTOCURRENCY
addr() descriptor checksum: A common problem in Bitcoin wallets
When it comes to interacting with a Bitcoin wallet on the blockchain, understanding how different descriptors are retrieved can be critical to debugging and troubleshooting issues. In this article, we’ll explore why you get an error message when you try to calculate your descriptor’s checksum using the getDescriptorInfo() method.
The problem: Address not found
The error message «-5: Address not found» indicates that Bitcoin’s internal data structures cannot find the address associated with your descriptor. This issue can occur for a number of reasons, including:
- Incorrect descriptor ID
: Make sure you are using the correct descriptor ID (e.g. «tb1qsvmygjlhq2p9ap262fwdfq3ptfjqlg2s9gcx58wazdge07kwu26q9guuh2») and the corresponding addresses.
- Descriptor not updated: If your wallet’s descriptors have changed, the «getDescriptorInfo()» method may return incorrect results. Check that your descriptors are up to date by running «wallet.getDescriptorInfo()» to retrieve new descriptor information.
How to resolve the issue
To resolve this error, follow these steps:
- Check descriptor ID: Double check that you are using the correct descriptor ID and the corresponding address.
- Update descriptors (if necessary): If your wallet’s descriptors have changed, update them by running «wallet.updateDescriptor()» to get new descriptor information.
- Use a different method: Consider alternative methods, such as using the «getAddressInfo()» method instead of «getDescriptorInfo()». This can help you get more detailed information about your address.
Code Example
To illustrate how to calculate the checksum of an Addr descriptor using the getDescriptorInfo() method, here is a sample code snippet:
«c
#include
#include
// Get address descriptor information
Descriptor* descriptor = wallet.getDescriptorInfo(«tb1qsvmygjlhq2p9ap262fwdfq3ptfjqlg2s9gcx58wazdge07kwu26q9guuh2»);
// Calculate the checksum of the Addr descriptor
uint8_t checksum = 0;
while (descriptor->addr != Bitcoin::Address::Zero()) {
uint8_t byte = descriptor->addr.read();
checksum ^= byte;
descriptor->addr.write((uint8_t)(byte ^ 0xFF));
}
// Print calculated checksum
std::cout << "checksum: " << std::hex << (checksum & 0xff) << std::endl;
«
This code snippet shows how to get a descriptor, calculate its checksum using a loop, and print the resulting checksum value.
Conclusion
When dealing with Bitcoin wallets, it is important to be familiar with the different descriptors and their corresponding addresses. By following these troubleshooting steps and adjusting your methods accordingly, you should be able to resolve the «-5: Address not found» error when attempting to calculate the checksum of an Addr descriptor using getDescriptorInfo(). Happy debugging!
