Cello Concerto in A minor, op. 129: II. Adagio - Langsam

Recording by Robert Schumann.

Recording identifiers

ISRC
FRZ141418020
CopyrightID (CopyrightChains transaction hash)
0xe15ebf5ca34cc9733c9113837fa8f3d18886408675756164d691383723738c0e
Copyright registration time
2026-06-10T16:37:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:fe504b5805f02b61b476b8561c0462b45e56ab33544d75055a75bbbf1fb4156d

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.