When Your Lover Has Gone

Recording by Sonny Rollins Quartet.

Recording identifiers

ISRC
USFI85600264
CopyrightID (CopyrightChains transaction hash)
0xca48341d7259a216fbec573a0209d4527bac468e250c09785dfad7a787285cec
Copyright registration time
2026-06-18T03:34:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:0bdcecae4ce4226f2e161f86c15b7a887fca216ce685b6da507619a41f0e26c3

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.