Schumann: Symphonic Études, Op. 13: Variation VII

Recording identifiers

ISRC

FRZ112500043

CopyrightID (CopyrightChains transaction hash)

0xd781518ce7f303cfd53b30870852e02f94b7a28b2be42aab6ff7fbcc4697a4bf

Copyright registration time

2026-07-07T03:29:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:cad979bc44ed23bdd10b03cd989eaee669b64a28fb116924e187c6d748516490

• 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.