Obsidian

Recording by Ryuichi Sakamoto.

Recording identifiers

ISRC
US23A1571154
CopyrightID (CopyrightChains transaction hash)
0x2b3c5244d7b7aff46b85c8422bbe399cfd633029978ceacfe49dde6467ee56e6
Copyright registration time
2026-06-20T04:33:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:1e090b6018104e3c10021f36cb4567494d2330c7f6571f8337fc239ccbc32b8d

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.