Little Threepenny Music: III. Instead of...

Recording by Kurt Weill.

Recording identifiers

ISRC
GBDGQ2538103
CopyrightID (CopyrightChains transaction hash)
0xc6e034bd09d014ba28cabb2eb85fc8c4c8e4674149a884349491fcea026bb482
Copyright registration time
2026-07-06T08:42:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T14:04:01Z
Bitcoin block
957046
Canonical record hash
sha256:3cb8d49cc6669d996086dc7632aa6d4ed7f2019175ea25ea46907aa54b410035

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.