ぶらんこ乗り

Recording by Kayoko Yoshizawa.

Recording identifiers

ISRC
JPCR01701100
CopyrightID (CopyrightChains transaction hash)
0x5bdf5aa0f87af9b14635275d5f0cf43f1701233c6789bc6bdcdc71b07e89f2de
Copyright registration time
2026-06-27T09:14:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:7063d88d150c280cc6711bf33f2a08720f12d1d21b11a944401324b63c95a1d1

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.