Rather than have a base witness, create witnesses using exactly the supplied sigla and no more, making use of both tei:lem and tei:rdg. Create a witness with the siglum "base" only in those cases where there is no witness information at all.
For the CBETA markup, this requires making the assumption that if an attested witness is not specified in a tei:rdg, it should be added to the list of witnesses to the tei:lem.
Rather than have a base witness, create witnesses using exactly the supplied sigla and no more, making use of both tei:lem and tei:rdg. Create a witness with the siglum "base" only in those cases where there is no witness information at all.
For the CBETA markup, this requires making the assumption that if an attested witness is not specified in a tei:rdg, it should be added to the list of witnesses to the tei:lem.