Introduction to the Study of the guitar, Op. 60: No. 5 in A Minor

Recording by Fernando Sor.

Recording identifiers

ISRC
HKI199513011
Release date of the album this recording appears on
1996-03-26
CopyrightID (CopyrightChains transaction hash)
0x23246ae50d844aa8f24a555fa1c61173ded19e6f981bcef2eeab37f8f70ab548
Copyright registration time
2026-07-31T09:52:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T10:06:30Z
Bitcoin block
960387
Canonical record hash
sha256:661ade705c28fd09089b7badc8b1b971d936122fe30d4a73d5c072ad78b89de3

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.