Cello Sonata in A Minor, Op. 13 No. 6: III. Allegro

Recording by Willem de Fesch.

Recording identifiers

ISRC
DECP69006030
Release date of the album this recording appears on
2015-05-26
CopyrightID (CopyrightChains transaction hash)
0x6b62b8baac9bbbdd2f285c1ce1f3f38b2e25b442ad2e54b44804dcc1d27944b1
Copyright registration time
2026-07-07T12:24:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:149ab96c06a9cf0427c09c6e67e7dd408487b050f9b4c254db44a0398120b915

What this proof establishes

This recording was released in 2015, 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.