Die Fledermaus, Act I: No. 5, Finale. d. Nein, nein, ich zweifle gar nicht mehr

Recording identifiers

ISRC

GBF076040510

Release date of the album this recording appears on

2009-01-01

CopyrightID (CopyrightChains transaction hash)

0xa7634de9056a843ede78c4a6bc07b179aef76b7567684eb490c7f1213596e8c1

Copyright registration time

2026-07-06T09:56:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T08:25:35Z

Bitcoin block

957011

Canonical record hash

sha256:35e4a3ad1fa615c90452dc70b83673e8d0e764fa6a0a1d49be51a9e254519d22

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF076040510

What this proof establishes

This recording was released in 2009, 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.