上を向いて歩こう

Recording by Chu Kosaka.

Recording identifiers

ISRC
JPG920700275
CopyrightID (CopyrightChains transaction hash)
0xb67351132862afbc2be0220adf856693b2e7f75ab7e889b3d56adac2cf0c6807
Copyright registration time
2026-06-21T14:13:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:e787fa544507e80ae74ac87b062fbb529804d661e1fed0fcae2df67790ad5dd3

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.