Opa

Recording by Kölsch.

Recording identifiers

ISRC
DEU671300127
CopyrightID (CopyrightChains transaction hash)
0x52a151703f5720300e6457f7b71f351fb01cfe832a8ce143662c4a2008fbfe29
Copyright registration time
2026-06-05T19:16:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:115c5f406f67ce3e7563e20373b3f3729b5c8d8ea9fadf328f78d7ad69541601

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.