Il matrimonio segreto / Act 2: Ascoltate un uom di mondo

Recording identifiers

ISRC

DEF057631045

Release date of the album this recording appears on

1977-01-01

CopyrightID (CopyrightChains transaction hash)

0x71a8a7c99991b6576d319dd16f757c28b4145dbefdfdf91ad2bfe4541e7c5b19

Copyright registration time

2026-08-01T00:16:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T00:40:43Z

Bitcoin block

960489

Canonical record hash

sha256:d457d57efebdb2084ae359102294ebff2de6407eeda3b18ce1d2678439ff6420

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF057631045

What this proof establishes

This recording was released in 1977, 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.