Twin Songs

Recording by Keishi Tanaka.

Recording identifiers

ISRC
JPB621801204
CopyrightID (CopyrightChains transaction hash)
0x6abbe6083f7dcc4f6a0a6987301f862752aaec13765d1ec483440407e9a66b4c
Copyright registration time
2026-07-07T10:32:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:2a70bee627451ac1179143db2bb3ac0a1d6269b851b7e877a5853bd6961eec47

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.