Hummel: Introduction, Theme and Variations for Oboe and Orchestra, Op. 102: Variation IV

Recording identifiers

ISRC

FRZ201902044

Release date of the album this recording appears on

1982-01-01

CopyrightID (CopyrightChains transaction hash)

0x3ea39725bd062df4bf61bbed10edb1df779d26ff2c21d08e5a9bf885d8381999

Copyright registration time

2026-07-06T09:48:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T14:41:13Z

Bitcoin block

957050

Canonical record hash

sha256:225ae1d736afd81a005c5e4181796223564afc6dc0dbb4f3109121b951ee2687

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC FRZ201902044

What this proof establishes

This recording was released in 1982, 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.