Provided by tnt as bare die prior to packaging.
Project source at: https://github.com/PyFive-RISC-V/caravel_pyfive
“B4,010,caravel_pyfive,0001000A,333,0,,,FINAL,f0b5406c69f010ed933329ebf5e5afea113746d2,curl -k 'https://foss-eda-tools.googlesource.com/third_party/shuttle/sky130/mpw-001/slot-010/+/refs/heads/main/gds/caravel_0001000a_b.gds.gz?format=TEXT' | base64 -d > caravel_0001000a_b.gds.gz,”