Cello Concerto, Op. 57: II. Andante. Solenne

Recording by Thomas de Hartmann.

Recording identifiers

ISRC
NLE422315902
CopyrightID (CopyrightChains transaction hash)
0x9e4a54b066de290e2a93fe89f2addce547326385b36b8086fc3459e01c97a423
Copyright registration time
2026-07-07T06:00:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:fe6c46afc53ac927e6c3b97e5e87cc666eda26f13ed0aa9692b63c04c8e35443

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.