tracked down this note from last year
quoting#Cashu PSA #umint #ecash #newmint
nevent1q…h67y
"Happy Saturdday Everyone,
Due to charges dispute with AWS, I was not able to renew the domain umint.cash so I moved the stablenut mint to this. https://stablenut.cashu.network
Simply change this in your wallet and it should restore the balance. Also, curious to know if anyone still using this mint as the activity has come down. the proof of reserves is hosted here. https://cashu.network/por#por. lmk for q."
[Sauce: Cashu R&D Telegram chat]