First Obligatory

Recording by Wim van Dullemen.

Recording identifiers

ISRC
DELJ81904012
CopyrightID (CopyrightChains transaction hash)
0x760ceabe52c58eee788115b1df3b4ad359847272e1719a8b68de981af7130368
Copyright registration time
2026-07-08T00:54:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:25d029b8d6b86618b8c455a1a35a1bd56b6d4adb1321a283297fe03e995969df

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.