ピアノ

Recording by Ikuko Harada.

Recording identifiers

ISRC
JPCO00806930
CopyrightID (CopyrightChains transaction hash)
0x0f42b7f72b0f19550fe9e32404e9a43a61da00f003779623cc59e1c09ecd0ebf
Copyright registration time
2026-07-30T00:20:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T00:39:11Z
Bitcoin block
960179
Canonical record hash
sha256:bcc1e3bfbdf5fcd0767a54482c6358f610b87c1bc11cd837c0160d5b3c532408

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.