Introduction to the Study of the guitar, Op. 60: No. 22 in E Minor

Recording by Fernando Sor.

Recording identifiers

ISRC
HKI199513028
Release date of the album this recording appears on
1996-03-26
CopyrightID (CopyrightChains transaction hash)
0xe7e86750b9ebdee3f08adc8d4be260f37a0cf25b163d74743647296e88ef7db1
Copyright registration time
2026-07-31T19:42:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T19:53:13Z
Bitcoin block
960455
Canonical record hash
sha256:1eab819b795064c25c1ff08864c75f646ef1fe01b83e2c7296d9ff271715940a

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.