ドアをノックするのは誰だ? - 2024 Remaster

Recording by Ozawa Kenji.

Recording identifiers

ISRC
JPPO02403268
CopyrightID (CopyrightChains transaction hash)
0xd4bb020d2343c1b15cefd1f0f06cacf70a90f076eec368bdc487aa22cb8cd897
Copyright registration time
2026-06-07T02:01:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:4b83fff9391c1dcbbf07c3e7224591ddda86707c98b9d88e0be34fdfdeeec17e

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.