The Nutcracker, Op. 71: Act I. Waltz Of The Snowflakes

Recording by Ernst Hoffmann.

Recording identifiers

ISRC
HKI199339710
Release date of the album this recording appears on
1990-12-19
CopyrightID (CopyrightChains transaction hash)
0x27aa6bd03377412d4cfece7cbc210f9747d96d73c18a4c9d5eed3fb2e8a03ce6
Copyright registration time
2026-06-11T12:29:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:4dcb01bd7a6d19519912b41c6414b8d4c30917ef88a7e365538b2c5702a1a12b

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.