[gruez]

No, but I think you'll agree that saying tears in a piece of paper "cryptography" is a stretch. It's not cryptography in the same way that a stamp or wax seal isn't cryptography, unless your definition of cryptography is "any method to protect the confidentiality and integrity of a document".

[cycrutchfield]

Do you consider ThreeBallot to be an example of cryptography? https://en.wikipedia.org/wiki/ThreeBallot