Quartet, Op. 33 No. 4, Hob. III:40: I. Allegro Moderato

Recording identifiers

ISRC

GBLWD2005201

Release date of the album this recording appears on

2020-10-01

CopyrightID (CopyrightChains transaction hash)

0x11831109d6a1cdf3ea745befc05de95407f85ffc569b7106c6cdbb4766c62ed7

Copyright registration time

2026-07-31T22:12:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T22:27:44Z

Bitcoin block

960473

Canonical record hash

sha256:d2e17af6d6ea09631ab50f632e2a51cba9f9845cf1233323391b51092946e410

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBLWD2005201

What this proof establishes

This recording was released in 2020, 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.