For Bert

Recording by Bert Kaempfert.

Recording identifiers

ISRC
DEUM70501909
CopyrightID (CopyrightChains transaction hash)
0x65d5dbbac1766cbeaca4bcb6a30a52312658455d9b15e1952f52e99bf5c3ff31
Copyright registration time
2026-07-06T21:27:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:b884bcb21f3e26aefa91a8e9864c97330aaf301e46d5b36cd633cc8a3116150c

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.