Piano Sonata No. 6 in A Major, Op. 82: III. Tempo di valzer lentissimo

Recording identifiers

ISRC

DEF058202513

Release date of the album this recording appears on

1984-01-01

CopyrightID (CopyrightChains transaction hash)

0x01a7c7c384f99f5c8c96cd53e6d15d24b8e67ae1470474b117574a8d2280d8a5

Copyright registration time

2026-06-25T08:51:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:dfa4ec20cfa33a22131a1320ae6c86aa713e146112fa9c6e38fb93a5bf4423a0

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF058202513

What this proof establishes

This recording was released in 1984, 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.