Impromptus on a Theme by Clara Schumann, Op. 5: No. 5, Lebhafter

Recording by Robert Schumann.

Recording identifiers

ISRC
DEPI82304412
CopyrightID (CopyrightChains transaction hash)
0x7d4b02c5709d345b2d937896bc250a498acda09daa8bc128a055659e797e3b96
Copyright registration time
2026-06-25T14:45:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:4cbaf13a5eeeaf4650799f5e52a79af75a2ddd13953c579ae9682a1b0a2bf594

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.