Introduction and Variations on a Swedish Song for Clarinet and Orchestra, Op. 12

Recording identifiers

ISRC

USSM11507911

Release date of the album this recording appears on

2015-12-04

CopyrightID (CopyrightChains transaction hash)

0x9344b996c61b59fbe257d46bfb262ec7c8cab6a885b0f477c5f518abc24fb49c

Copyright registration time

2026-06-20T02:50:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:3f69af4151fa58d0a6a61649c7cc96317952a79c1bce922cd6cfe57c43a45af3

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC USSM11507911

What this proof establishes

This recording was released in 2015, 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.