Pique Dame, Op. 68, TH. 10 / Act II: "Chto zdes za shum?"

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
DEF057731852
Release date of the album this recording appears on
1977-01-01
CopyrightID (CopyrightChains transaction hash)
0x2028e00b70d6712b25ec97d05e382ff5925a21cf8d342b6ddfe6618e4d08642c
Copyright registration time
2026-07-07T16:33:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:7ef34c1442b18f8fbb1a138aeb3783e2d451e7f3c9e7dd3eaa9464e9b667010c

What this proof establishes

This recording was released in 1977, 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.