SMILEY

Recording by Mika Nakashima.

Recording identifiers

ISRC
JPN300901282
CopyrightID (CopyrightChains transaction hash)
0x133e8668b044ef39cbb8bda8f089c873c481d89db0974bc2313c01878d987d47
Copyright registration time
2026-07-29T19:19:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T19:35:34Z
Bitcoin block
960138
Canonical record hash
sha256:abee0dea11bf7a5b55428d25e2858818c6ad6d6a78db0d84cbf5da7147e8973f

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.