Die Fledermaus: Ouvertüre

Recording by Johann Strauss II.

Recording identifiers

ISRC
DEE210841101
CopyrightID (CopyrightChains transaction hash)
0x01691121fffdd7f293ecd9bab2d2ac7f22e3bf52aa9fc1903b5c17395f20b8e0
Copyright registration time
2026-07-07T16:50:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:d559925827200d8735650613f1460d0a16d2b4f2fdede414d5d9b938c5212beb

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.