Once Upon A Summertime

Recording by Michel Legrand.

Recording identifiers

ISRC
GBBBB2014212
CopyrightID (CopyrightChains transaction hash)
0x61f2892899992f68c7e96eae3eebc9e50e7bf5ae50e225de620188cba0d65573
Copyright registration time
2026-07-07T07:22:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f247513f01b459cf1db34b3fa05bf98327ae7f1ca1d0d718b61c03100526fe77

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.