Etudes For Guitar, Op. 31: No. 22 In B-Flat Major

Recording identifiers

ISRC

DEF056702146

Release date of the album this recording appears on

2003-01-01

CopyrightID (CopyrightChains transaction hash)

0xd27512ca315bb7fabaeb5d8dafb243facfa03dd892fd63a259cd1b7c62a3db70

Copyright registration time

2026-07-31T15:49:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:59:18Z

Bitcoin block

960427

Canonical record hash

sha256:6ec3e8c526a2581b3f2ec9b71ca7b6b5e4beecf92ec5f27d5c992d6bbbcbdcbe

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEF056702146

What this proof establishes

This recording was released in 2003, 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.