ignorance is bliss

Recording by Kei Matsumaru.

Recording identifiers

ISRC
JPB622001479
CopyrightID (CopyrightChains transaction hash)
0xbf6271e18bdf19061e964b6cf6b0f52940415cd506de60906784be4c7a6bd379
Copyright registration time
2026-07-31T13:32:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T13:50:38Z
Bitcoin block
960410
Canonical record hash
sha256:ba6980f1e8b41f558d27b50bb5ce11afba2c6d0c8452ab6804999d45b183ba8c

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.