Lost

Recording by Katy Perry.

Recording identifiers

ISRC
USCA20705906
CopyrightID (CopyrightChains transaction hash)
0xf4ac1c24bb466eb65ccf5f03138a1b80f562d97fad779d944c421b965f47f68c
Copyright registration time
2026-06-07T05:56:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:e13cada6d7cb9443fcc8e49366e9bf93e2e33e3573edfd134efc42144806772c

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.