24 Studies, Op. 35, "Exercises": No. 22 in E Minor

Recording by Fernando Sor.

Recording identifiers

ISRC
HKI199507626
CopyrightID (CopyrightChains transaction hash)
0xf45e5da0831bbacf18612385bad0a71dcff4760e19ee55d4fd1da0ef78003ddf
Copyright registration time
2026-08-01T00:33:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T01:44:32Z
Bitcoin block
960494
Canonical record hash
sha256:372c7b704b1f0810c291dd0cfc82a13e5b19098f60fd407240e9fda34406c562

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.