Valse d'Eugene Oneguine, acte 2: Ballet 6

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
FRZ179002710
CopyrightID (CopyrightChains transaction hash)
0x7388d8523071669834f6be52a0206ee9a36edbbb6665110b13e08af6f1c96c8c
Copyright registration time
2026-07-07T20:54:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:8fa26df3a8310834ae9a8e266d41e0544feb7b3735bede7e8314816fb515591c

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.