Déjà Vu

Recording by Katy Perry.

Recording identifiers

ISRC
USUM71702940
CopyrightID (CopyrightChains transaction hash)
0x555b561e031deb94681a030f99691f91008be1481c2ece597cefec090ba9fa77
Copyright registration time
2026-06-04T15:22:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:6f0424172ca264b529f8495f2bb872536d35aa0269369579027b7ff066951f2e

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.