Candide, Act II: No. 23, Words, Words, Words (Martin's Laughing Song)

Recording by Leonard Bernstein.

Recording identifiers

ISRC
DEF058931829
Release date of the album this recording appears on
1991-01-01
CopyrightID (CopyrightChains transaction hash)
0x42e3db00d5523cdc8593da77c49a2ea4cc334ad2c9359ef12606cb4a632c44fd
Copyright registration time
2026-07-30T06:15:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T06:39:12Z
Bitcoin block
960216
Canonical record hash
sha256:c2e125589404c68e957b9bdebff72eed4eeb055125d57ce12f360f2c1a7912db

What this proof establishes

This recording was released in 1991, 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.