Sonata No. 2 in A Major, C. 91 "The Visitation": Sonata - Allemanda - Presto

Recording identifiers

ISRC

NLA460912897

Release date of the album this recording appears on

2015-01-01

CopyrightID (CopyrightChains transaction hash)

0xead4b700f14025a58d5e811d2bb7b73cd6baa150a97e85046dcab825c90a5737

Copyright registration time

2026-06-27T06:32:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:43c178eca9559d1b055f809af41a005a2e1ed5f13aacb36c3b600d7c52010798

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA460912897

What this proof establishes

This recording was released in 2015, 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.