Piano Quartet in E flat, Op. 47: 3. Andante cantabile

Recording by Robert Schumann.

Recording identifiers

ISRC
DEF059304903
CopyrightID (CopyrightChains transaction hash)
0xb3e528280f4ab8ec5788b14ae8a58e778724568d7ab0165a94b3434294e6faaf
Copyright registration time
2026-06-10T05:12:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:f48263a8bb93986683c994bd284802bf2ecddf5e7f323c340dd0046b1bd40427

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.