Vorspiel aus La Traviata, 1.Akt

Recording identifiers

ISRC

CH0279401350

Release date of the album this recording appears on

1991-01-01

CopyrightID (CopyrightChains transaction hash)

0x8e81eb4f9329a21152e315eedfd6e9b7272005a7f8a6958e07f0fe85d62f8f51

Copyright registration time

2026-07-31T09:01:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T09:25:34Z

Bitcoin block

960379

Canonical record hash

sha256:9c5f9081ad25ad73704b3b7d55e40ab0ada11c65349eb1c7c7fc7c15a6b06e94

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC CH0279401350

What this proof establishes

This recording was released in 1991, 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.