Sor: 12 Etudes, Op. 6: No. 11 in G Major

Recording by Fernando Sor.

Recording identifiers

ISRC
FRZ207904500
Release date of the album this recording appears on
2016-08-05
CopyrightID (CopyrightChains transaction hash)
0xe992ce92f1e66a1b3f9374c9ad40e0a90838903e0fd848a6cc86a8ef93f7ea93
Copyright registration time
2026-07-07T17:18:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:1be58e103a029b46c325758d11ab5def8d4e997b6f9f48f0d5e66a32dd255e80

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.