Grijs

Recording by Jaap Reesema.

Recording identifiers

ISRC
NLSU32200093
CopyrightID (CopyrightChains transaction hash)
0x6e3aa0f607f8a7ef98f2ed8a540f1b849195655bf084f56b1f9447aa742f1b8c
Copyright registration time
2026-06-04T06:19:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:481c5214112f823c05a3f08602a7a0e06fc0fd2009a6347612418b245c1ea0f4

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.