だからわたしは北国へ

Recording identifiers

ISRC

JPVI07101760

Release date of the album this recording appears on

2005

CopyrightID (CopyrightChains transaction hash)

0xddb8a2e1a89d17a256a46df1835878fb3da85d6794d69359e5eda5029dc4cb57

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T22:27:30Z

Bitcoin block

960321

Canonical record hash

sha256:d9c51a730ef6fc38153e8d1864a11489dcc7713faf5a5312cab568fdb36a3cdf

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC JPVI07101760

What this proof establishes

This recording was released in 2005, 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.