Nussknacker - Marsch

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
GBAYD8200150
CopyrightID (CopyrightChains transaction hash)
0x049bb946a43d2792bbf8a78b13439b4ebc1a7e2e6d101f4dd47d517dc4ec31af
Copyright registration time
2026-06-08T17:32:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:c0339e29c092dca482f42b56b49bad109c61e4ca5be967bc04c7aa44c45b32b2

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.