In less than one hour after sending my report I received a QSL COPE Valencia on 1296 kHz. My reception was confirmed with a QSL by Carlos Corral from the local technical department who also confirmed my report for COPE Murcia. Thank you Carlos!
COPE is an acronym for Cadena de Ondas Populares Españolas. This nation wide network is established by the Spanish Episcopal Conference – the catholic bishops in Spain – with the intent to bring religious programs. Since 1980 the network evolved to a more generalist radio. They still bring religious programs though, and the church has a prominent spot on the COPE website.