Ghost Variations - Variation 4

Recording by Robert Schumann.

Recording identifiers

ISRC
FRZ050000144
CopyrightID (CopyrightChains transaction hash)
0xa93a830f4ed775f0efa2d9fdbff891c15610214a9d48cc9e4b42bb8388d3b2b9
Copyright registration time
2026-07-07T04:38:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:d30a628d0e05983ea80c0d8013cf95f1d73c70538609f8e4e016750dcc4a979d

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.