1928

Recording by Ludwig Hirsch.

Recording identifiers

ISRC
ATM470300265
Release date of the album this recording appears on
1991-01-01
CopyrightID (CopyrightChains transaction hash)
0xd0da1ee0f3b76e9c7a4acfd9422426c243d4dd70ddf73e5b97072f03e044e718
Copyright registration time
2026-07-06T04:58:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:73cc303fee7d78b33a1fac40ded05eb5158faf69107245878a40ec03122b8714

What this proof establishes

This recording was released in 1991, 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.