Sonata for Viola and Piano, Op. 147: 2. Allegretto

Recording identifiers

ISRC

GBF071503162

Release date of the album this recording appears on

2016-06-03

CopyrightID (CopyrightChains transaction hash)

0xc0880e7ef6467f8e5bf3b5ab03dd6119f52fe3ca13e83d21c90f42acbd8034ea

Copyright registration time

2026-07-06T02:49:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-06T06:56:49Z

Bitcoin block

956889

Canonical record hash

sha256:70e0f8d3e8fcc09657a45e80f70fdb95f770683a87255c329673bc1dad9a3d21

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF071503162

What this proof establishes

This recording was released in 2016, 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.