As Time Goes By

Recording by Herman Hupfeld.

Recording identifiers

ISRC
HKI190241916
Release date of the album this recording appears on
2003-10-01
CopyrightID (CopyrightChains transaction hash)
0xccef52b6e84a96c3e56dfdb156c1bffb6f108df819a67fe8956e44e67481ffb0
Copyright registration time
2026-07-31T14:19:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T15:20:15Z
Bitcoin block
960418
Canonical record hash
sha256:d3eac84fac82ee547ee05d83fe829fd15e844cc3d698f209ff82eb1c406562f1

What this proof establishes

This recording was released in 2003, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.