Sonata for Solo Cello: II. Capriccio

Recording by György Ligeti.

Recording identifiers

ISRC
FRZ132010110
Release date of the album this recording appears on
2020-11-27
CopyrightID (CopyrightChains transaction hash)
0x939d8e67ed3fa452fd8ea5836fa9f4d9e473e856dcaa0b3f96df2f53b164f6be
Copyright registration time
2026-07-30T00:28:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T00:39:11Z
Bitcoin block
960179
Canonical record hash
sha256:f61b68e02b3c6c233a6631add9bb50fca0078c423630ace30dee421b3f70b1ca

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.