君と僕の挽歌 - “Story” from New York

Recording by Yu Sakai.

Recording identifiers

ISRC
JPPO02400531
CopyrightID (CopyrightChains transaction hash)
0x969b9bad455656d03bdc9166cb660ee655d6cababb37551a7ab11026a13f8d3b
Copyright registration time
2026-07-07T10:38:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:31c15e3d65652c7d67489c78e8d8cfcb56073a70b265e44a7d413946a1ba3b1f

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.