365日の紙飛行機

Recording identifiers

ISRC

JPKI01519629

Release date of the album this recording appears on

2017-01-25

CopyrightID (CopyrightChains transaction hash)

0xa20c47b1d84a0597c8caf7573bac94138c8c335fcad4d14ebd9fee2d2d7df2fd

Copyright registration time

2026-06-04T07:50:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:53:06Z

Bitcoin block

953515

Canonical record hash

sha256:b62922e7942dc9e131e010fcbac2f2e729a72ef0e392b174d6f8871b8e295803

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC JPKI01519629

What this proof establishes

This recording was released in 2017, 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.