Introduction et valse mélancolique, Op. 14

Recording by Jacques Offenbach.

Recording identifiers

ISRC
DEE861900943
CopyrightID (CopyrightChains transaction hash)
0x45a4ddc7a1b76dda4de675b2e20654ed64124522925079cff6377860883aa95c
Copyright registration time
2026-07-07T14:10:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:8a24dc6397a2a5a0bc0477bee9a456024298642d2858ef90f90f6fc01a3d2f67

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.