Pirate Jenny from The Threepenny Opera

Recording by Kurt Weill.

Recording identifiers

ISRC
USSM15500047
CopyrightID (CopyrightChains transaction hash)
0xd16c1a756e783fb445c701e57bc9833a0f1b3d7499e41f3bdefec85fb4f4c1d5
Copyright registration time
2026-07-06T07:34:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:49638d905e919fc2d1a56c1674e5531f34bc328c748ea8a72227d2e3c59434ee

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.