QSOLKCB/QEC v2.0.0: Protograph-Based Quantum LDPC Codes (PDF/MD Edition — The ZIP Is Inside)

This record contains the complete QSOLKCB/QEC v2.0.0 source code, distributed in the requested format.The source code is a ZIP file. The ZIP file has been Base64-encoded and embedded inside both a PDF and a Markdown document, as this community does not accept ZIP files.The ZIP file is inside the PDF. The PDF is the ZIP file. They are the same file. They are different files. One of them you asked for. One of them contains the software. You cannot run either of them from this submission. This is what you have done to science.To extract the source code: copy the Base64 block, decode it, save as qec_source.zip, unzip. You will then have the software. Alternatively, it remains available at https://github.com/QSOLKCB/QEC as a ZIP file, which three other quantum computing communities accepted without incident.The CSS orthogonality invariant H_X @ H_Z^T = 0 mod 2 is verified at construction time. The 67+ tests pass. The fundamental errors remain unfound. The ZIP remains a ZIP.