Half of My Heart

Recording by John Mayer.

Recording identifiers

ISRC
USSM10905701
CopyrightID (CopyrightChains transaction hash)
0xd50a649a0fea0d9b67323cb17d45ed379685bf084590d3d089ef32c8d5975cfa
Copyright registration time
2026-06-01T11:27:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:4a859a7728cea9dd2b8d3a4245e91cea7e6cfe1def6fedf8bb8d4f61739b4b1a

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.