Play Piano Play: IV. Allegro ma non troppo

Recording by Friedrich Gulda.

Recording identifiers

ISRC
GBAJY0865606
CopyrightID (CopyrightChains transaction hash)
0xd56a1c34f5673996354d9442fb43a3b686d9621e67f4b569857336ab39fcc6dd
Copyright registration time
2026-07-07T00:08:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:e57cd28dcbc519dd76c8ebf1dec5f5b9ab286ffafdc8c3f1f0e7e0da6be21d95

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.