Opw. 13 vers 1, 2 en 4

Recording by Mannenzang Katwijk.

Recording identifiers

ISRC
NLCQ60043215
CopyrightID (CopyrightChains transaction hash)
0x5c9bbc61114f9aa2734df8202106511403c23ed9e2ae665e31a712af65070865
Copyright registration time
2026-07-06T18:22:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:371854556fa225588c63c8e41756a8e9da144db2846ede9e5ebd098208932e21

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.