Gräfin Mariza, Act I: "Lustige Zigeunerweisen" (Chor)

Recording by Emmerich Kálmán.

Recording identifiers

ISRC
DEHB51303744
Release date of the album this recording appears on
2015-01-29
CopyrightID (CopyrightChains transaction hash)
0x47499516bd818d0860b0c7ee53d3e9f50509cd8108ae2684dc3b9c76c83c79a8
Copyright registration time
2026-07-31T11:17:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:ca28c7c83dddc616a906645b1985f23e4a56dfa9f5fda2ade5a4a21123b71c0d

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.