To be clear, the EIS name is the only debugging information in the XID.
XID:
formatId
gtrid { sequence, root node name }
bqual { sequence, subordinate node name, parent node name, eis name }
sequences are vital naturally
root node name is vital to detect orphans at the root in recovery
subordinate node name is vital to detect orphans at subordinates
parent node name is optional to filter list of recovered XIDs at a remote server by the caller
eis name is debugging