Concerto for Strings and Continuo in D major, RV 121: 2. Adagio

Recording identifiers

ISRC

NLA508209014

CopyrightID (CopyrightChains transaction hash)

0x377e5672227d83c9685d3b37036131ad54b3616429554bd026b6e492574860de

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T11:07:37Z

Bitcoin block

960095

Canonical record hash

sha256:bba7c98c34495ea700b9fef092762d601bdd94fd7ed0497c7100686869fdf71f

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.