Cello Sonata in B flat major, RV 45: 4. Allegro

Recording identifiers

ISRC

NLA509002006

Release date of the album this recording appears on

1992-12-02

CopyrightID (CopyrightChains transaction hash)

0xd2632ac2b266619f6c194ce3d1c24b47cec133a4c92233cde2381bc8a6abfd98

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T23:30:38Z

Bitcoin block

960478

Canonical record hash

sha256:f165ab7f6ec182766a57db488bf8416748688e5bc44109a9018986702cff679a

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA509002006

What this proof establishes

This recording was released in 1992, 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.