Who's Sorry Now

Recording by Bert Kaempfert.

Recording identifiers

ISRC
DEF067321130
CopyrightID (CopyrightChains transaction hash)
0x0e7b6f604cee96ef3165ef6e1dbf499f81b4945c88635ac080bab40183b32bb2
Copyright registration time
2026-07-06T08:47:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T14:41:13Z
Bitcoin block
957050
Canonical record hash
sha256:1b1d62a4f621042e25031592e3fa385f526afcf15d6a1e0d689d283c8c760d52

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.