The Sleeping Beauty, Op. 66, TH 13: V. Valse (Arr. S. Rachmaninov for Piano Duo)

Recording identifiers

ISRC

NLE421503805

Release date of the album this recording appears on

2017-12-01

CopyrightID (CopyrightChains transaction hash)

0x6599312be7dccbd5f9f8d62e0677f9705a9d0de48b5b6c7b8d016c6150471d0a

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T06:39:12Z

Bitcoin block

960216

Canonical record hash

sha256:337f5f71599368805bcc885a0eb0076b4c0a197b6090f942a15d67e342316a2b

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLE421503805

What this proof establishes

This recording was released in 2017, 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.