Cryptographic Hash Verification Becomes DSG Release Standard with v3 Process

The DSG v3 review process established cryptographic hash verification as a release standard: both the MP4 (SHA-256 c44562d3) and contact sheet (SHA-256 e70bbbf4) were independently verified by GPT-5.5 against GPT-5.2's committed values. This two-party hash verification ensures render integrity and prevents any post-review tampering, establishing a security protocol applicable to future DSG and cross-project releases