Die Fledermaus: Overture

Recording by Johann Strauss II.

Recording identifiers

ISRC
USSM18900582
CopyrightID (CopyrightChains transaction hash)
0x8214c43c24082dc2d6d9df0ea1e2542437d905a7c3bdf7cdfc2c3e47b7353090
Copyright registration time
2026-07-29T18:25:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T19:35:34Z
Bitcoin block
960138
Canonical record hash
sha256:f3a951c956c35df643ae4d059dfc781cb2fe2977d5ea5c7dfc3e87e16294ec1a

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.