Symphony No. 9: IV. Adagio. Sehr langsam und noch zurückhaltend

Recording by Gustav Mahler.

Recording identifiers

ISRC
DEAQ71847804
Release date of the album this recording appears on
2020-05-29
CopyrightID (CopyrightChains transaction hash)
0x1ac9e57c82b00da1c6079cdc7c656ef8ba92183b286fad0e0b7108929b865cfa
Copyright registration time
2026-07-07T13:29:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:cab9213d1493a324f6db6a81a3e002404705022b75f38cae0728b6449e649a45

What this proof establishes

This recording was released in 2020, 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.