Ha, Ha, Ha, Je Vader

Recording by Paul de Leeuw.

Recording identifiers

ISRC
NLK072200105
CopyrightID (CopyrightChains transaction hash)
0xf9e19976eaea3a93fbc453554c0c587d5f0f17ffa15a6681d8d1d0c0bfdefd26
Copyright registration time
2026-07-31T05:14:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T05:23:41Z
Bitcoin block
960349
Canonical record hash
sha256:3f0f7a878fab6ba5696e7d14d67c1f5faf10e44a64616ccf64de37c9d6202a59

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.