Hoffmanns Erzählungen: Es war einmal am Hofe von Eisenack

Recording by Jacques Offenbach.

Recording identifiers

ISRC
USB8U1804602
CopyrightID (CopyrightChains transaction hash)
0xcd6001f62bcc0c0b1dc9860c4295364f09b2020c9b742b5e3bed0751d168a32a
Copyright registration time
2026-07-07T16:36:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:9af903aea8fa7f4b74fa89faac55199d51da232c2b447dc350d124c8419750d7

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.