Bassoon Sonata in E-Flat Major, Op. 9: I. Allegro ma non troppo

Recording identifiers

ISRC

GBLWD1109305

Release date of the album this recording appears on

2011-10-01

CopyrightID (CopyrightChains transaction hash)

0x420937b393e0cfafe9069c6d1a0157e22d42d84578512100ef395c255f56aa98

Copyright registration time

2026-07-29T21:44:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T21:51:49Z

Bitcoin block

960150

Canonical record hash

sha256:e9e24dcf5fb917adbda24883c9c94921b07f4501e78491d3b877e80ea3b350f4

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBLWD1109305

What this proof establishes

This recording was released in 2011, 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.