Brahms: String Quartet No. 2 in A Minor, Op. 51 No. 2: I. Allegro non troppo

Recording identifiers

ISRC

GBAYC9102588

CopyrightID (CopyrightChains transaction hash)

0x8cca90d021a187a651432645cfb99210b8953ac276ba786956b2d4c661875614

Copyright registration time

2026-07-06T10:39:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T16:07:00Z

Bitcoin block

957061

Canonical record hash

sha256:6c4ccc64847fe79548f0c712212cef0e497559936de1f6a4b45df4748d8d2cdb

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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.