String Sextet No. 1, Op. 18: I. Allegro ma non troppo

Recording by Johannes Brahms.

Recording identifiers

ISRC
FR50X2179201
CopyrightID (CopyrightChains transaction hash)
0x603eb443f3105d2e8c980bc9e45e8938abd032dd8d9378fa61e8b34722fd26c0
Copyright registration time
2026-06-20T08:08:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:8db033981461fba2b21bb7b9885f6c1e7cc819aad41d0b3e020601d1bc105cc0

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.