Eugene Onegin, Op. 24, Act II: Entr'acte and Waltz with chorus

Recording identifiers

ISRC

USSM10404568

Release date of the album this recording appears on

1990

CopyrightID (CopyrightChains transaction hash)

0xc0bd8f47503ab1a5b8c403d6ba0d905cebf110a9962a19cb57c452047b781397

Copyright registration time

2026-07-30T15:21:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T15:42:38Z

Bitcoin block

960273

Canonical record hash

sha256:9300abc95a5a41127304639219105c11dbfbf65332804d017fa05cf648b8907b

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USSM10404568

What this proof establishes

This recording was released in 1990, 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.