Mam'zelle Angot (Arr. Jacob): No. 10, Valse. Allegro

Recording by Charles Lecocq.

Recording identifiers

ISRC
GBF078341211
Release date of the album this recording appears on
1991-01-01
CopyrightID (CopyrightChains transaction hash)
0xe469ef4be27458b3a03c4ebac2bef840454f0aaae9257816733c46a6dba80f8d
Copyright registration time
2026-07-07T05:31:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:8ed85628fa743aabbcdecdb4b26ae25dfa2b5e455373a696640bbf839073e67b

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.