They're called gauge marks. Popular constants in various fields....
http://www.sliderules.info/a-to-z/gaugepoints.htm
Probably Wikipedia.
tom jennings /
npub1h7…qm2up
2024-08-09 15:44:31
in reply to nevent1q…q3jk
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npub1h7a5g39aukwykgy3jnznlynlwz2rmu5vh7m4uarkg5d5jcrw3ceseqm2upPublished at
2024-08-09 15:44:31Event JSON
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