Yesterday

Recording by Gladys Knight & The Pips.

Recording identifiers

ISRC
USUM70608924
CopyrightID (CopyrightChains transaction hash)
0x2b1d34916cf45af593d74c421d51227899fa4e94612582d0263ae2b5f44e4716
Copyright registration time
2026-06-26T09:28:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:b921f8cbe698349c8b53cdac0f729b3b147f3ba63921fb851683c920cc052153

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.