Introduction to the Study of the guitar, Op. 60: No. 18 in A Minor

Recording by Fernando Sor.

Recording identifiers

ISRC
HKI199513024
Release date of the album this recording appears on
1996-03-26
CopyrightID (CopyrightChains transaction hash)
0x59bd199fa5c597292070bdbe379768ad13be9afd2f0b8f92fb3d49e0647eb0d6
Copyright registration time
2026-07-07T13:20:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:25f41b123ff9ecbda0a9d7aa97924ef934ecd6f2097a35d50fd667be201dc4a3

What this proof establishes

This recording was released in 1996, 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.