Le nozze di Figaro, K. 492: "Der Prozeß schon gewonnen?"..."Ich soll ein Glück entbehren"

Recording identifiers

ISRC

DEF056131710

Release date of the album this recording appears on

1962-07-01

CopyrightID (CopyrightChains transaction hash)

0x3cda0eddb4ebe5d4ed5230be43ac617ad952362b7efb2087170c03cc563f73be

Copyright registration time

2026-07-31T15:30:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:59:18Z

Bitcoin block

960427

Canonical record hash

sha256:9b64c338d3b4d4a8d6b04d1554448e03a5aeb2e326fbffc38932dc531a875c00

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF056131710

What this proof establishes

This recording was released in 1962, 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.