Medley: Cheek to Cheek / Some Broken Hearts Never Mend / Sweet September

Recording identifiers

ISRC

CH0271109270

Release date of the album this recording appears on

1980-01-01

CopyrightID (CopyrightChains transaction hash)

0xde9d49913dc3fe37f19a6b5d9e45f564bff8307b700472c4c3a65fc16fc8b906

Copyright registration time

2026-07-30T08:06:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T08:30:10Z

Bitcoin block

960229

Canonical record hash

sha256:a9ef05655b563c410f593b722898aff6695a48f4ec8ed5579afa1110a1ba038d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC CH0271109270

What this proof establishes

This recording was released in 1980, 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.