16 Waltzes, Op. 39 (Version for Piano Duet): No. 15 in A-Flat Major

Recording identifiers

ISRC

USSM19200658

Release date of the album this recording appears on

1993-11-15

CopyrightID (CopyrightChains transaction hash)

0xcb929ca21e9a01dc7b525e86b7970a100272d04b8a3b459514b9822e6a1f5716

Copyright registration time

2026-06-04T11:33:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:47:07Z

Bitcoin block

953513

Canonical record hash

sha256:aecdd9af7391e2ddc54e5ad8068a193fd0e85322071dfddf7ad0ec70b344e246

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USSM19200658

What this proof establishes

This recording was released in 1993, 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.