Refu

Recording by Christian Löffler.

Recording identifiers

ISRC
QM7281869335
CopyrightID (CopyrightChains transaction hash)
0xdb07986944485ad6aabbb1c73186a0bd8bb102fd009893abe4e43502d945645b
Copyright registration time
2026-06-10T09:37:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:7d34b4c6d72a92ab816baf2fc150418f2feeecf4991271acd0cde9e772f08c8d

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.