Wie Lange Noch?

Recording by Kurt Weill.

Recording identifiers

ISRC
USNO18101907
CopyrightID (CopyrightChains transaction hash)
0x01aa87f8bab6f7ed53db7f19b44e14d7b72e5c7bd2666fc64a2a2e00a4d756a3
Copyright registration time
2026-07-06T20:51:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:b504dab61751d0fc6aa899e422a9dbbb2792d1aacd242a2b38446eb5d21f7067

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.