Concerto V in F Minor: IV. A Tempo Giusto

Recording by Unico Wilhelm van Wassenaer.

Recording identifiers

ISRC
NLY332100591
Release date of the album this recording appears on
2021-03-26
CopyrightID (CopyrightChains transaction hash)
0xd48b70de1eb12d465a9f72b74ca716ba901eb8034dae429426c75d584e02606f
Copyright registration time
2026-07-07T06:08:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:4faaa7b3006abb384aa07f4ce685392924a6f4eae39faa789a4b12ac3eb1a93d

What this proof establishes

This recording was released in 2021, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.