Madame Butterfly

Recording by Giacomo Puccini.

Recording identifiers

ISRC
USSJ10904020
CopyrightID (CopyrightChains transaction hash)
0x1e30dcbc6630cc1627ac64e7ad9bdb5f2773beb7972113088ed081f493eca927
Copyright registration time
2026-07-07T06:04:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:8a529291b8d4d624bfe6da875808f7dfdbdeba17c74a649250d5b40125dafbad

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.