Double Concerto in A Minor, Op. 102: II. Andante

Recording by Johannes Brahms.

Recording identifiers

ISRC
DEF058300012
CopyrightID (CopyrightChains transaction hash)
0x42293648009b814bb382b01ce220538631a3981588c5cb2eda87a1ff905e8751
Copyright registration time
2026-06-09T18:21:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:91761479dde70b800de80ce9154003e5866b79a9016b38e6475393cb865ce2d2

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.