Marietta's Lied

Recording by Erich Wolfgang Korngold.

Recording identifiers

ISRC
USQX92004535
CopyrightID (CopyrightChains transaction hash)
0x96cfbe94926478bcdaa7a5bcf524d97b52a1a5220d482590ceecabe34c07d879
Copyright registration time
2026-06-18T14:56:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:c18da9c4549037a0b8e33cdb43515cff00fac5cd5310896319bc616bdad4b292

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.