Publisher service records aka "publisher cards" contain mundane data as RTN described above, plus date of birth and any notes a publisher or pioneer may have voluntarily included on his/her monthly service, such as "illness" or "emergency LDC duties" being the cause for an uncharacteristically low hour or low production report.
Although some elders will stubbornly resist, any publisher may request to review his/her publisher service record data. (km 10/98 p.7 par.3) A typical print of a publisher's service record will include a simple spreadsheet of the most recent six months to one year of reported ministry activity.
A publisher or pioneer usually requests a print copy of his/her ministry service record to personally review their own "spiritual progress", or simply because one lost their personal calendar notebook. A few elder bodies have from time to time provided these spreadsheets to each publisher in the congregation (privately) to drum up a spirit of "self examination"... i.e, 'where can you improve in the ministry?'
Some of the most scandalous records pertaining to a given publisher or family are any "letters of introduction" which one body of congregation elders will transmit to another body of congregation elders when an individual publisher or family relocate to different congregation. Those letters are strictly confidential and often contain crafty remarks (above & beyond historical monthly sevice reports) which the receiving body of elders will typically accept as fact before consulting with the subject publisher or family, under the culty assumption that a fellow body of congregation elders would transmit only thoroughly investigated fact and truth.
Another source of scandalous records are applications for special service, which often include very sensitive information about the applicant's healthcare, finances, congregational standing and confidential (sometimes backstabbing) remarks from individual elders about those areas of the applicant's life.
The most notorious of publisher records are the official forms and other communications secretly exchanged between local congregation elders, circuit overseers, and departments of oversight within the main offices of Watch Tower corporations in regard to navigating deletion of personnel, scandals and legalities.
Without relentless legal subpoena or rogue leaks, most of that material will remain obscure to the courts and public society.
But, they will lovingly let you see a spreadsheet of your monthly sales timecard... Cheers!