Die Fledermaus / Act 2: "Mein Herr Marquis"

Recording by Johann Strauss II.

Recording identifiers

ISRC
GBBBA0201530
Release date of the album this recording appears on
2003-01-01
CopyrightID (CopyrightChains transaction hash)
0x1382da1b1880404c1e2ae86f8813ebfb26434f972a560b3a63d088ec93a477e2
Copyright registration time
2026-07-31T05:58:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T06:42:11Z
Bitcoin block
960360
Canonical record hash
sha256:0c1cf0f1e7d74ff8ea2e7afc7548c76c3a3de6ebbcfd0cc286fc910c68370821

What this proof establishes

This recording was released in 2003, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.