Na Surdina

Recording by Guinga.

Recording identifiers

ISRC
BRVLS0300019
CopyrightID (CopyrightChains transaction hash)
0xff5872369ae4e0d8e18132798f95f0c0405e2fc8c49a55a86f643a029054e845
Copyright registration time
2026-07-06T23:02:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:3148be042da6ec5f7dc8110b9df516e9286b864676208ee71b6547a412abdca5

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.