Sing Me Not a Ballad (From The Firebrand of Florence)

Recording by Lotte Lenya.

Recording identifiers

ISRC
USSM15700361
Release date of the album this recording appears on
1999-04-26
CopyrightID (CopyrightChains transaction hash)
0xcbefadecc3f4848f31cbe8e02eea84b835031854b3a1f6c33286dba0b27bf803
Copyright registration time
2026-07-07T14:41:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:965d4219588864bd4d0872988bab6baa0dd3dbf3f90773526e9f99d130c9e8c2

What this proof establishes

This recording was released in 1999, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.