Yamanakako no Theme ”Touchaku kujira no mizuumi”

Recording identifiers

ISRC

JPK632102121

Release date of the album this recording appears on

2021-03-31

CopyrightID (CopyrightChains transaction hash)

0x295b1f10e39f482df0fd792a3d4ca030d137f1a0d5abe8313a9d6c8fea9d5372

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T13:09:35Z

Bitcoin block

960108

Canonical record hash

sha256:66e9f009adc1c62e207906f78deb4073ccfe229a888ae3d54149326168d7665d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC JPK632102121

What this proof establishes

This recording was released in 2021, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.