Die Fledermaus, Act I: No. 1, Introduction. Täubchen, das entflattert ist

Recording identifiers

ISRC

GBBBA6075120

Release date of the album this recording appears on

2009-01-01

CopyrightID (CopyrightChains transaction hash)

0xbb465d6be86e9400a4ae8eca5a4df7c3e8aab0602c6f031073ccafc129cdc05b

Copyright registration time

2026-07-06T06:37:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-06T06:56:49Z

Bitcoin block

956889

Canonical record hash

sha256:cfef2afac8f0495e78df897d1a87e96e0bc652ff34e71c35ead391a54bcd400d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBBBA6075120

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.