Square really went with that for the sats symbol 👎
https://npub1lrnvvs6z78s9yjqxxr38uyqkmn34lsaxznnqgd877j4z2qej3j5s09qnw5.blossom.band/a679bc8db6ad5a6e2c182c9f9b88001e372262e322745868e561c196e8bb...
No coiners won't understand if you put anything else. I'm not saying it's optimal, I'm saying it's practical.
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