La Rondine: Chi il bel sogno di Doretta

Recording by Giacomo Puccini.

Recording identifiers

ISRC
HKI199287616
CopyrightID (CopyrightChains transaction hash)
0x236d87b21b57d5f4436caf1ccb7c9cf1d3f0ba41f03b6648179ba1972136bc99
Copyright registration time
2026-07-31T05:04:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T05:17:02Z
Bitcoin block
960348
Canonical record hash
sha256:cd148226d8fb7bfcf9aec75d6eb32891108dce969be741062b89fac95e292a22

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.