Het Feestlied (Lalala)

Recording by Jan Biggel.

Recording identifiers

ISRC
NLE872510301
CopyrightID (CopyrightChains transaction hash)
0x060b8c56fdfc6c5b827a10c2ee84c1e68d07b22dc8ec14e0916542969abedf16
Copyright registration time
2026-06-05T10:08:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:aacbe552be107287485dcf333cbbd13beb9a0bdf726b0f0874412672f6c17386

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.