Two Hearts

Recording by Keiko Matsui.

Recording identifiers

ISRC
US7SF1355480
CopyrightID (CopyrightChains transaction hash)
0xe48fda3ae0478d128c969ebccc482673b4c033ec09199c0bad215d402c98ffbe
Copyright registration time
2026-07-07T08:18:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:a95f805c95f45da6983ea2a88ddb0a1e7cfdbec2a8e964797ab809052256befc

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.