Smiling

Recording by Takahiro Izumikawa.

Recording identifiers

ISRC
JPZ922107086
CopyrightID (CopyrightChains transaction hash)
0x8480c3ecc8c8668b700b7c5c52a7a9d7cdd2f4aa8d6b8597feb8f27f83bc098d
Copyright registration time
2026-07-06T21:38:49+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:61891a52d11b2abec2bc627403aa756f9ec8863c88e2cffb16dace4a0644a7e8

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.