Majima Construction's song - Full Spec Edition

Recording by 真島建設社員一同.

Recording identifiers

ISRC
JPR501929947
CopyrightID (CopyrightChains transaction hash)
0x8a482fc2c0e5b3429a7d9beffe1af9766292b4f23d660bb51ae976ff4613062f
Copyright registration time
2026-06-05T20:36:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:4bea20890d7ff63eb4bc9e3eff600a14d682eb79894e9c9121e484ed138901c7

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.