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
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:462388e1569f3802988ab5ca26176c82b0eba8507a4f762585795aff2db94ce5

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.