{"id":19830,"name":"Nostr Witness Vault","purpose":"A mobile application (iOS) that leverages cryptographic hashing and digital signatures to securely store and publish photo verification witnesses to Nostr relays, allowing users to prove the authenticity of images without uploading the originals, enhancing digital trust and provenance.","profitable":1,"date_generated":"Sunday August 2026 03:02","reference":"nostr-witness-vault","technology_advise":["iOS","Medium"],"development_time_estimation_mvp_in_hours":220,"grade":7.4,"category":"mobile","view_count":17,"similar_ideas":[{"id":960,"name":"Digital Passport Vault","grade":7.2,"category":null},{"id":14312,"name":"Secure Vault Mobile","grade":8.2,"category":"mobile"},{"id":7157,"name":"SecureDevice Vault","grade":8.1,"category":"security"},{"id":21486,"name":"AuthentiPic Verify","grade":7.8,"category":"security"},{"id":13034,"name":"Guardian Vault","grade":8.2,"category":"security"}],"source_headline":"Free app creates cryptographic witness for photos on iPhones."}