summary - Argues SARS-CoV-2’s genome contains an unusually evenly-spaced pattern of Type IIS restriction-endonuclease recognition sites - consistent with the kind of synthetic seamless-cloning (‘Golden Gate’-family) assembly method used in the lab to build infectious coronavirus clones from smaller synthesized DNA fragments - and that this pattern is statistically anomalous relative to related natural coronaviruses, including SARS-CoV-2’s own closest known relatives. Concludes the restriction-site map is more consistent with synthetic genome assembly than with natural evolution. Remains a contested, non-peer-reviewed preprint; the Würzburg rebuttal argues the claimed statistical anomaly does not hold up once alternative natural explanations and multiple-comparisons issues are accounted for.
relevance_note - The primary “molecular fingerprint of synthetic assembly” argument in this dataset - the lab-leak-favoring counterpart to Pekar et al. 2022’s lineage-A/B zoonosis case on this slice’s lineage/restriction-site sub-axis. Explicitly contested and unresolved; treat the underlying claim as live-disputed rather than settled in either direction.