WARNING: Blink.sv
nostr:npub13ljnkd633c7maxatymv3y2fqq8vt3qk7j3tt0vytv90eztwgha9qmfcfhw says in their documentation that they do not charge fees when you receive an on-chain transaction.
I sent myself 82,097 sats on chain. They are crediting the account balance to 79,097 sats. That's 3,000 sat difference.
On-chain transaction: 7326d7278d41a45f46e803817517800be9b85a84ba48bc6cbd35203e03ff8d0e