Orpheus in the Underworld: Can-Can

Recording by Jacques Offenbach.

Recording identifiers

ISRC
NLA506100439
CopyrightID (CopyrightChains transaction hash)
0x3a9e4eee2a689ea7114aa8d7b6588181677fcb10c674aaa68c621e5b3c829ce8
Copyright registration time
2026-06-21T02:56:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:d322a304a55f66752cc7fe46401c165516c1a94b2833a01ba3c6e60ff4661c95

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.