U-Bahn

Recording by Blümchen.

Recording identifiers

ISRC
DEBL60605240
CopyrightID (CopyrightChains transaction hash)
0xf5b1f73ef47841045d9ff9ff5375748160ca7e9b6c6429a040d213f950ed18e2
Copyright registration time
2026-07-22T05:18:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-22T05:56:21Z
Bitcoin block
959103
Canonical record hash
sha256:027efb095fd6de822aaa6871c05555cd2ea4730e471eb0e966bf62bb478a8890

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.