Gräfin Mariza, Act II: "Wenn ich abends schlafen geh'" - "Ich möchte träumen" (Zsupan, Lisa)

Recording by Emmerich Kálmán.

Recording identifiers

ISRC
DEHB51303763
Release date of the album this recording appears on
2015-01-29
CopyrightID (CopyrightChains transaction hash)
0x1066d95cb0842671e3dab5f10975f0d9677b30f4b3014a215205879163b3072d
Copyright registration time
2026-07-31T17:21:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T17:29:52Z
Bitcoin block
960441
Canonical record hash
sha256:f9dd97c268805649dd01e75073c6a128e3dcfbc0af142ac36d5a97c3e5658d9f

What this proof establishes

This recording was released in 2015, 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.