Piano Trio No. 10 in E flat, Op. 44, 14 Variations on theme by Dittersdorf: Piano Trio in E Flat Major, Op. 44 - 14 Variations on a theme by Dittersdorf

Recording identifiers

ISRC

NLA507902019

Release date of the album this recording appears on

2001-01-01

CopyrightID (CopyrightChains transaction hash)

0xc0cd964c3a7d3130993d865f918800d35d32ca4329ea1d886cc6e2f299e6086c

Copyright registration time

2026-07-07T07:25:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:944fa5fbb47d6014b37a17f75c81e5bd01dff79bfec150e102c1babf07642158

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA507902019

What this proof establishes

This recording was released in 2001, 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.