Das ist der Fruhling von Berlin

Recording by Walter Kollo.

Recording identifiers

ISRC
USB8U1010274
CopyrightID (CopyrightChains transaction hash)
0xf2f74bacfa58d4ad1e270811a9ed0e148a01f3f44c58fc530149c55d52a791ab
Copyright registration time
2026-06-25T22:43:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:560eaed70db798f47e829820da97087cb622303a44abf661647a2b3143097a5a

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.