I can help you. Here’s a step-by-step guide on how to verify that you’re using the authentic version of BitAddress.org by using the SHA256 hash string and verifying it against the original HTML file:

Step 1: Download the original HTML file

To verify the authenticity of your BitAddress.org HTML file, you’ll need to download the original HTML file from the BitAddress.org website. You can do this by visiting [ and clicking the “Download” button.

Step 2: Verify the SHA256 hash string

Once you’ve downloaded the original HTML file, extract its contents using a command-line tool like “tar” or “unzip.” This will give you the contents of the HTML file in a file with the extension “.html.” You can then use a hex editor or a tool like “sha256sum” to verify the SHA256 hash string.

For example, on Linux, you can use sha1sum bitaddress.org.html | head -n 1 to get the first line of the SHA256 hash string:

$ sha1sum bitaddress.org.html | head -n 1
...

This will display a shortened version of the SHA256 hash string.

Step 3: Verify against the original HTML file

Compare the SHA256 hash string from Step 2 with the contents of the original HTML file. If they match, then your BitAddress.org HTML file is an authentic copy.

For example:

$ sha1sum bitaddress.org.html | head -n 1
...
Original HTML file content:
... (insert content here)
Hash string:
...

If the SHA256 hash strings match, you have successfully verified that your BitAddress.org HTML file is an authentic copy.

Linux command for verification

Here is a Linux command that will help you verify the authenticity of your BitAddress.org HTML file using “sha256sum” and compare it to the original content:

$ sha1sum bitaddress.org.html | head -n 1 && cat <(echo "$(( $(sha256sum bitaddress.org.html) | head -n 1))" > /dev/null)

This command downloads the SHA256 hash string, prints it to the console using “head -n 1”, and then uses “cat” to pipe the output to a file. The syntax “$( … )” is used to execute the result of “sha256sum bitaddress.org.html” as a shell command.

If the contents match, this command should print nothing. If there is any discrepancy, you will see an error message indicating that the SHA256 hash string does not match the original content.

Note

: This method assumes that your BitAddress.org HTML file is stored in the same directory as the script and has the extension “.html”. Also, keep in mind that this method only verifies that the SHA256 hash string matches the original content; it does not verify that you are using the correct version of BitAddress.org.

I hope this helps! Let me know if you have any further questions or concerns.