Cello Sonata in A Minor, Op. 13 No. 6: II. Alla breve

Recording by Willem de Fesch.

Recording identifiers

ISRC
DECP69006029
Release date of the album this recording appears on
2015-05-26
CopyrightID (CopyrightChains transaction hash)
0x85cb6fae415043d6e850e353df6472134e19fa6e31e4b635502951b814e6de5d
Copyright registration time
2026-07-07T02:29:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:4cc9405be4b7ee413ba232d0b43b96be65544287790da44a09d2fe2f3e722776

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.