Heer, wilt U mijn Leidsman wezen

Recording by Christelijk Sliedrechts Mannenkoor Ichthus.

Recording identifiers

ISRC
NLL6R1500026
CopyrightID (CopyrightChains transaction hash)
0xca9578fbde56d68b9be11d1c8e2b2f3c9ce1e69c098055b56c1bb8eca15917ca
Copyright registration time
2026-06-21T10:13:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:bf88e64d5c5da61cc602c4ebaa719b476481ebd24f14f76cf8a65994de3d1a7e

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.