12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 8 in A Minor for 2 Violins, RV 522: 1. Allegro

Recording identifiers

ISRC

NLA506200293

Release date of the album this recording appears on

1963-01-01

CopyrightID (CopyrightChains transaction hash)

0x7943347a84d8ef6dd25f1e45202d309ba62a74da1556b8e83eb9700f49b52eee

Copyright registration time

2026-07-06T19:41:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:356359637e0677c60647d99935e399d1984fee03fc7eb552518994a6bdce4052

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA506200293

What this proof establishes

This recording was released in 1963, 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.