Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto

Recording identifiers

ISRC

NLA508201008

Release date of the album this recording appears on

2001-06-12

CopyrightID (CopyrightChains transaction hash)

0x3a854a7317a952bd8bd211d5192c5977b95f10e34f7cdc5acda260e586b02d54

Copyright registration time

2026-06-25T22:44:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:b48aff4941dbc805b06dda12adc51a6c7659ca0dfd46b33919b5db37c5148236

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA508201008

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.