Introduction to the Study of the guitar, Op. 60: No. 12 in G Major

Recording by Fernando Sor.

Recording identifiers

ISRC
HKI199513018
Release date of the album this recording appears on
1996-03-26
CopyrightID (CopyrightChains transaction hash)
0x41f8ef98237ebb04fd1e00bbdbe9e06fa220fbeb8325a91eb24af313abf17f60
Copyright registration time
2026-08-01T01:28:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T02:22:04Z
Bitcoin block
960497
Canonical record hash
sha256:6b2bf7df3c949853c434ef9daf188e7df1c59068e7b5cc7293a1246315dc7f52

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.