Madama Butterfly, 2. Akt: Summchor

Recording by Giacomo Puccini.

Recording identifiers

ISRC
HKI199190612
CopyrightID (CopyrightChains transaction hash)
0x338284691c37e4b37778bf6e2d7d807a4ffc7176bcef648a362f8a29613712e4
Copyright registration time
2026-06-05T20:57:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:1334ac513eaa62f9fd4f3afd27218834f9ea118a0f65ba2b124fec41017648dc

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.