What A Difference A Day Makes

Recording by Bert Kaempfert.

Recording identifiers

ISRC
DEF067610980
CopyrightID (CopyrightChains transaction hash)
0xe6e20429f55157cc454b22c99454db682567d91237ab4153c11e1bf8c04173d3
Copyright registration time
2026-07-07T01:19:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:9d2be0e555688ae2095d3c1e949d953190078514097d6382998c78aee1ac4ed3

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.