Puccini: Turandot, Act 2: "Tre enigmi m’hai proposto!" (Calaf, Imperatore)

Recording identifiers

ISRC

GBAYC1400843

Release date of the album this recording appears on

1958

CopyrightID (CopyrightChains transaction hash)

0x56a43d0a54bc1102e3bf4809c8299dd13dd4a3bf466a8f237a1b3fec6157cefd

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:59:18Z

Bitcoin block

960427

Canonical record hash

sha256:6a71140a728b1ec933ba82b065342d63f7d896ea3b21c524e638badada3c282b

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC1400843

What this proof establishes

This recording was released in 1958, 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.