Die Fledermaus: Overture

Recording by Johann Strauss II.

Recording identifiers

ISRC
DEF057530601
CopyrightID (CopyrightChains transaction hash)
0xb24865e756c52a61ccb9ecaac92c9023c6093dd2b7db1d0a312c7798ecc5342a
Copyright registration time
2026-06-04T12:26:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:509cbe001ef0b42a0a6c2fb61c5ce9df72d56bbaeb326269fd09e85b55e49951

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.