Sing ein Lied

Recording by Friedrich Rau.

Recording identifiers

ISRC
DENQ82200001
CopyrightID (CopyrightChains transaction hash)
0x3a0221aede62e1f8c9b30e8e4f7cab9f032783d1960b8dc487a13cdc531699a3
Copyright registration time
2026-07-07T18:22:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:21ce727ae4fb90d35baa0e71f5add091a8cfb8646cf0ad9138408c6c68ffa521

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.