La traviata / Act 1: "Libiamo ne'lieti calici" (Brindisi)

Recording identifiers

ISRC

NLA509104303

Release date of the album this recording appears on

1999-01-01

CopyrightID (CopyrightChains transaction hash)

0x35d95be7f9344c778f2d9f5f80952b244ed45e4578e4f6dd0e9cd467ac526a1f

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T19:53:13Z

Bitcoin block

960455

Canonical record hash

sha256:caffaa826e5f481ad2abf0f8f77e9d0da45bde0b5d92153b5801063eac58c046

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA509104303

What this proof establishes

This recording was released in 1999, 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.