ぽんこつブルース(阿部マリア、市川美織、入山杏奈、大場美奈、加藤玲奈、川栄李奈、木崎ゆりあ、木本花音、島崎遥香、島田晴香、高橋朱里、竹内美宥、永尾まりや、松井珠理奈、村重杏奈、矢神久美、山内鈴蘭)

Recording identifiers

ISRC

JPKI01318289

CopyrightID (CopyrightChains transaction hash)

0xc9efcaa48e01b7e960d2320a6b8cb8ae6d8687f65ae79f4bbe4e1909735a3d6f

Copyright registration time

2026-07-29T12:42:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T13:09:35Z

Bitcoin block

960108

Canonical record hash

sha256:d441e1a3b459510742dbff8a996c3c6f5300bc92fda052d44e4f0a2a8fe636f5

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.