Did they leave some kind of alphanumeric code message on your 1 sat zap too?
Yep and yep
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Did some more research on this one..
Appears to be a message encoded with Sha256 which is the same mechanism Bitcoin uses for its hashing algorithm.
nostr:note1c2rjyl9menx04mkqdhtc7pry3hlcn22cdc5l8uhze2dfftdpmpcqxq9yk4
This is intriguing!