String Quartet No. 4 in C Minor, Op. 18 No. 4: I. Allegro ma non tanto

Recording identifiers

ISRC

GBAYC8802821

Release date of the album this recording appears on

2019-11-30

CopyrightID (CopyrightChains transaction hash)

0xf4723569d85982b2e67a1101d4e4368bfa0c10c32c6e895f14761737819d7ecc

Copyright registration time

2026-07-31T01:09:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T02:19:15Z

Bitcoin block

960334

Canonical record hash

sha256:f7bc24b9c56e7456c8b6689da988fc0af8aff1d5a2c97bf98da4b2d35256dce2

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC GBAYC8802821

What this proof establishes

This recording was released in 2019, 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.