Symphony No. 7: II. Nachtmusik. Allegro moderato

Recording by Gustav Mahler.

Recording identifiers

ISRC
GBF077110002
Release date of the album this recording appears on
1991-01-01
CopyrightID (CopyrightChains transaction hash)
0x41a4adce1ff569fdd7485ed5ad7564c7dd37967b9ed89621a815119ad0e6eeb6
Copyright registration time
2026-07-07T09:40:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:156f6eac60751574ff3fc8b383ce59995edaeb84df904fdf6c1bbde2948ade2a

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.