Regina Marsch

Recording by Ernst Urbach.

Recording identifiers

ISRC
UK97H1500591
CopyrightID (CopyrightChains transaction hash)
0x6a9d822241c10ccbfe6dbfb57be9cf162255263418ca5139a69282b30275e51e
Copyright registration time
2026-07-30T11:59:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T12:45:34Z
Bitcoin block
960258
Canonical record hash
sha256:6b99af22619a0e9748bbc85fdeeb244727f8c8b716186d652c1b4177bba2995b

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.