Keyboard Concerto No. 4 in A Major, BWV 1055: I. Allegro

Recording identifiers

ISRC

USSM11409977

Release date of the album this recording appears on

1969

CopyrightID (CopyrightChains transaction hash)

0x732d1637429934783fa827636888556ef492eb21b190f908f8d6ff709db399f8

Copyright registration time

2026-07-30T07:34:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T07:51:46Z

Bitcoin block

960223

Canonical record hash

sha256:2689a46be2bbf892c7632364d3f4de3801d992b23c675fd79ca7c8b628424077

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USSM11409977

What this proof establishes

This recording was released in 1969, 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.