Thank you Manuel for drawing this to our attention and to others for their observations. Nothing pleases me more than to hear that Boluda decided to clear up the confusion that they created in the first place with inconsistent naming both in their submissions to registration authorities, and also in what they had painted on their tugs - within their own control from the beginning. However registration authorities do occasionally make mistakes, and it is not at all unknown for revised registration or other certificates to be issued (without the correction being recorded as a "change of name".
We have, in principle, decided to adopt Equasis as the most accessible quality source for those vessels it covers, for the convenience of our members and to aid the admin team and the overall efficiency of the site. As has been said, national flag registers are the most official source, but few of those are accessible publicly. All flag authorities have the ability to have Equasis data corrected, if they so wish.
Incidentally, for Spain, is the government's 'Lista oficial de buques' 2009 the latest accessible online (without a paywall)?
However, none of this should preclude us using common sense and making modifications where necessary. For example, we already exclude non-latin alphabets and additional letters or accents, even though the official ship name may include them.
I see that all the VB tugs on-site have aleady been unified, even those that pre-date Boluda's 2014 corporate decision, and am content to let that stand, even though some well pre-date the changes.
best wishes
David