Concerto Grosso No. 4 in G Minor, "Dulce somnium": III. Grave - Adagio

Recording by Georg Muffat.

Recording identifiers

ISRC
NLA460810118
Release date of the album this recording appears on
2008-01-01
CopyrightID (CopyrightChains transaction hash)
0x91a2fd45b5c4473669ae3b660afce35a344e392872b53e7e5f3fea2f3d36a26f
Copyright registration time
2026-07-30T20:24:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T20:35:49Z
Bitcoin block
960309
Canonical record hash
sha256:bd4db5ad6976ca96c5603f29187acee2f4b5da0cca39342dbbe5ccc517508349

What this proof establishes

This recording was released in 2008, 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.