This is one of the more interesting things I'd like to see blossom support. A private way to check if all the hashes you care about are still present on a server without revealing the exact hashes.
Block filters enable efficient privacy for Bitcoin wallet synchronization.
A similar trick can be used to privately find out if your files are stored in a blossom server.
Summoning the cryptography wizards for review please!
Thanks @hzrd149 for the brainstorming sessions. View article →
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