Rütmus und Bluus

Recording by Polo Hofer.

Recording identifiers

ISRC
CH0800351006
CopyrightID (CopyrightChains transaction hash)
0x65431c3cc83c3a70590e67a7765e0d7237b2f6f8ffbe74d34d62a8148c27d797
Copyright registration time
2026-06-25T11:05:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:2750b5392172d35c611a244bf95f744c1edb7a4a438b8451ff97bd12478a11c7

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.