Improvisatie Over Psalm 43

Recording by Klaas Jan Mulder.

Recording identifiers

ISRC
NLY8X1801828
CopyrightID (CopyrightChains transaction hash)
0xdb7e3309c94bce7e5582f357474b708d720067196b2bc17b050b3125b501b75f
Copyright registration time
2026-07-06T08:49:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-13T07:53:33Z
Bitcoin block
957819
Canonical record hash
sha256:eb7439620546ef52fd6154111f81344e9056489345d93bcf2238c5e4f9bfa350

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.