Concerto No. 4 for Guitar and Orchestra - Dedicated to John Williams "Concerto de Toronto": Variation IV

Recording identifiers

ISRC

USSM19701945

Release date of the album this recording appears on

1997

CopyrightID (CopyrightChains transaction hash)

0xd974fb54976dabcd9f4e9f83b48f94b0a0eb17b012f2054071ba26de3bbfb632

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T23:30:38Z

Bitcoin block

960478

Canonical record hash

sha256:8e0713654a44c1faa645eeda0c898b3906d981c0d026403c1c6b4df4f9d58148

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USSM19701945

What this proof establishes

This recording was released in 1997, 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.