The Lazy Song

Recording by Bruno Mars.

Recording identifiers

ISRC
USAT21001886
CopyrightID (CopyrightChains transaction hash)
0x7c2443ff14eb55af7ff006af01a1a5a7b6649497db7cb9603b6439db46b846c3
Copyright registration time
2026-06-04T11:57:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:c614ca5e9658236b044fa8b742f86fb586f410ebd5a95946c94d8b47e0b39b65

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.