Variations and Fugue for Piano and Orchestra

Recording by Gunnar de Frumerie.

Recording identifiers

ISRC
SEAGA8203010
CopyrightID (CopyrightChains transaction hash)
0x95bbb0a59a733c810fa037b4e72d3ba5c513dbb66c875bca59b1bd61608039c1
Copyright registration time
2026-01-28T22:14:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:937bcf83d0fb84ad2e7f07ce3f503c3d9d23814601f09627433b6c22e9bfdd95

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.