Curiously enough, even the EPO in Europe (where terms like "appraisal" get used [ 1, 2, 3 ]) says "PIPs". But the acronym's ...
According to Lupa with its database of capsules, in Geminispace "3010 (91.9 %) capsules are self-signed, 5 (0.2 %) use the Certificate Authority Let's Encrypt, 259 (7.9 %) are signed by another CA ...
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