Violin Concerto in D Minor, WoO 23: II. Langsam -

Recording by Robert Schumann.

Recording identifiers

ISRC
USB8U1019492
CopyrightID (CopyrightChains transaction hash)
0x3510ecc9d4d707c102a79491f2090f907d88517f55e1c3188b79d6ce54ae7572
Copyright registration time
2026-06-25T18:38:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:f19135e3d2ec08adc6227bedf8b0626fd7ab09d5ff7dd9883cf5251e95b8eb6e

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.