O-11 - 2018 EcoHealth-WIV DEFUSE proposal sought to insert furin cleavage sites into SARS-related bat coronavirus spikes
Reading of the leaked funding-proposal artifact. Establishes documented intent and stated capability to perform this specific class of spike modification at the implicated institutions. It is a proposed experiment, not evidence it was performed.
Link to original
Why this is evidence
Documented intent and capability for exactly the modification H-5 names, at exactly the institution H-5 names. Strongly raises H-5 against H-1, and also against H-6, whose research-incident leg locates the work at a non-WIV institution.