Marsch - Der Nussknacker (March - Nutcracker)

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
DEP621800032
CopyrightID (CopyrightChains transaction hash)
0xd1e04bd9ef361529e9d320effced27ec4e31115e8acb5240a8b70d9332d664f5
Copyright registration time
2026-06-19T05:19:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:5d22355f6e2fcff66bc73d93f571a8912c2b7e3b2680762763bf721922d956a9

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.