The Nutcracker, Op. 71, Act II: XIVd. Coda

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
SEWDL0535423
CopyrightID (CopyrightChains transaction hash)
0x0a95842f30bc8f0c2fc4d3918b2efe50f0659f3c09f09592f7d36ac41b912ec9
Copyright registration time
2026-06-19T14:38:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:0e616228daac9ab77724b267b8093b44972c7d5d43197869dcb433933c6d5c6b

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.