It's very common for the early, early pushbutton cars to have the short VIN on the dash like yours. Your car was originally destined for the European marked (like all panteras up to #1286 I think), and probably exported to the US sometime later in it's life.
The correct VIN that I believe would be most appropriate to have in the papers is the long version, something like THPNLC01077?
The long chassis numbering and stamping system that complied with the US regulations, wasn't decided on until february 1971, so it's possible that cars finished before then (like yours may have been), was given the short code on the dash.
Look up early panteras at Provamo.com and you'll find many examples of this
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