Cheek to Cheek

Recording by Frank Sinatra.

Recording identifiers

ISRC
USX761494904
CopyrightID (CopyrightChains transaction hash)
0x6cd726001c1953d0f4e8a2811b64605ba929e189317a6b0c9aa7b7d34dd42fee
Copyright registration time
2026-06-22T17:01:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:552316669495a5944edddcde18e280a703225f6410211bc6a26d96460f5c59bf

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.