Symphonic Studies, Op. 13 - Appendix: Variation V

Recording by Robert Schumann.

Recording identifiers

ISRC
DEF058330211
CopyrightID (CopyrightChains transaction hash)
0xfa976ad21f0a63436db59c41ef998dad8c8020ec58e3fcc1a5e06ecda1ccf0e0
Copyright registration time
2026-07-31T23:18:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T23:30:38Z
Bitcoin block
960478
Canonical record hash
sha256:354cdf03a205181bf1652aab696cf04b99c145355a9bffa0cf4fa01844c062e8

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.