Once Again - Mix Cut

Recording by Matisse & Sadko.

Recording identifiers

ISRC
NLM5S2402367
CopyrightID (CopyrightChains transaction hash)
0xba4ef26763f2c0d49164a5e1e290d5bd0f9bbd143d2d45f9670227bb1fddbfa3
Copyright registration time
2026-06-20T05:01:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:fac54c37389ae5b65fef2c98a1e0fcb7ab76fbc1e72127d4322bdf9ff1c73c6c

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.