Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
lib64cob4
lib64cob4(x86-64)
libcob.so.4()(64bit)

Requires :

libc.so.6()(64bit)
libc.so.6(GLIBC_2.11)(64bit)
libc.so.6(GLIBC_2.14)(64bit)
libc.so.6(GLIBC_2.17)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.22)(64bit)
libc.so.6(GLIBC_2.28)(64bit)
libc.so.6(GLIBC_2.3)(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
libc.so.6(GLIBC_2.33)(64bit)
libc.so.6(GLIBC_2.34)(64bit)
libc.so.6(GLIBC_2.4)(64bit)
libc.so.6(GLIBC_2.7)(64bit)
libdb-5.3.so()(64bit)
libgmp.so.10()(64bit)
libjson-c.so.5()(64bit)
libjson-c.so.5(JSONC_0.14)(64bit)
libncursesw.so.6()(64bit)
libtinfo.so.6()(64bit)
libxml2.so.2()(64bit)
libxml2.so.2(LIBXML2_2.4.30)(64bit)
libxml2.so.2(LIBXML2_2.6.0)(64bit)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsZstd) <= 5.4.18-1

Content of RPM :
/usr/lib/.build-id
/usr/lib/.build-id/c4
/usr/lib/.build-id/c4/41361765949401ee2d7849d6b313dededceb1a
/usr/lib64/libcob.so.4
/usr/lib64/libcob.so.4.2.0
/usr/share/licenses/lib64cob4
/usr/share/licenses/lib64cob4/COPYING.LESSER