Introduction and Fandango from Guitar Quintet No. 4

Recording identifiers

ISRC

CH6541904472

CopyrightID (CopyrightChains transaction hash)

0xaf0388fd167612be3de5c61856fa7b238314b0f8dbc39b5e7f6cbcbd3450404d

Copyright registration time

2026-07-07T18:37:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:22:41Z

Bitcoin block

957120

Canonical record hash

sha256:b5ac37bfe1d05bcc6fa1abaf4370cacc324556b79bbd1aae1b5138b4367e08c6

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.