Sketch#1

Recording by Sara Wakui.

Recording identifiers

ISRC
JPS801957073
CopyrightID (CopyrightChains transaction hash)
0x119d43580b85ba4fa487891a471023f4f71aa6ef2b9468be4b5d8a10c23f9dac
Copyright registration time
2026-06-20T09:34:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:8e5a2c3b2081b21eb5c656432898336ac3d036aade62f8f8fdf4a73baf2a5783

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.