Impromptus on a Theme by Clara Schumann, Op. 5: No. 10, Lebhaft

Recording by Robert Schumann.

Recording identifiers

ISRC
DEPI82305757
CopyrightID (CopyrightChains transaction hash)
0x85d75229e930d42a0b091d0f09a546805091ac2bf6fe1a2d9e37ab7c03dc8c75
Copyright registration time
2026-07-07T14:23:49+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:d3c2b4ba625a89de0abd9f15926e1467e9e074abeab38cb5a08e907637087507

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.