Used to Love U

Recording by John Legend.

Recording identifiers

ISRC
USSM20403198
Release date of the album this recording appears on
2006-07-01
CopyrightID (CopyrightChains transaction hash)
0xb313f7aa40f36612f6530812a68633e0107147a9f6447d12a78e2f18732e0a7f
Copyright registration time
2026-06-04T07:49:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:d10c84849df92213e6566545606629df02b722d4eb3bacdbbe8ad255ac0ebe6b

What this proof establishes

This recording was released in 2006, 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.