Symphony No. 2 (1933): Second movement: Largo

Recording by Kurt Weill.

Recording identifiers

ISRC
GBAYC9700828
CopyrightID (CopyrightChains transaction hash)
0x41e7141ac8a82c7707670ef3dcd322a35f5049d42665d249111566c9568f7a15
Copyright registration time
2026-07-07T17:49:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:34de90c8592ad711eed0a4c788dfbde8abe6ce3315dcd6102f17bfd1da88f6ef

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.