String Quartet No.15 in A Minor, Op.132: I. Assai sostenuto - Allegro

Recording identifiers

ISRC

GBAYC8903031

CopyrightID (CopyrightChains transaction hash)

0x137b737a6782bfbd336a3fc594f1d9507271f5f62cf4948e0240db939ca8083b

Copyright registration time

2026-06-25T23:57:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:898136fdd2f654901e3f5aafffd83b15cf42267a3750df41c5ef6352635ec352

• Verify the CopyrightID on CopyrightChains
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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.