The Nutcracker, Op. 71, Act I: VII. Scene, Clara and the Nutcracker

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
SEWDL0535407
CopyrightID (CopyrightChains transaction hash)
0x43e50a40977defcc25863184bb13fa5eaba513054b6b425b6cf9cf75313c1634
Copyright registration time
2026-06-10T05:33:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:3ceeed44a811f13667ff39693ceec7cdcdd685f3615f5d0363dcaa1e3bcb768d

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.