Harpsichord Concerto No. 4 in A Major, BWV 1055: II. Larghetto

Recording identifiers

ISRC

NLB151800274

Release date of the album this recording appears on

2018-05-04

CopyrightID (CopyrightChains transaction hash)

0xf1649b564baf1dcf271e32dc67d20a7fb6b9eef018e41c7658cf887157b82ad5

Copyright registration time

2026-06-23T11:22:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:38d63389b5c470fbb88fb6ef22bd368dc94ff8cceb75a9070cc6b90c67095109

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC NLB151800274

What this proof establishes

This recording was released in 2018, 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.