Introduction to the Study of the guitar, Op. 60: No. 19 in G Major

Recording by Fernando Sor.

Recording identifiers

ISRC
HKI199513025
Release date of the album this recording appears on
1996-03-26
CopyrightID (CopyrightChains transaction hash)
0x777924418b5cf2c9f91c8b8e38f3916b622e9e482e72c6f369b376111156ad31
Copyright registration time
2026-07-07T23:12:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:0ed18015176877dc6aa909f58b49760ec9ba8faaabdbbb56f8da5a8b4f23df96

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.