Orpheus in the Underworld: Cancan

Recording by Jacques Offenbach.

Recording identifiers

ISRC
USSM11602638
CopyrightID (CopyrightChains transaction hash)
0x96de33df2a5a42317f57ca2969610a7917d4b612d86084d8f55825fa91d1f24a
Copyright registration time
2026-06-04T12:14:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:644566d3f4c29cf724755d79a55e954b3ed09f34a0bceaa1541a36c23e441646

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.