Keyboard Sonata in C Minor, Op. 1 No. 2: I. Fièrement

Recording identifiers

ISRC

AUFFF1800117

Release date of the album this recording appears on

2018-12-20

CopyrightID (CopyrightChains transaction hash)

0x7d0e0f9960851df7df2b21d8e84c15ad58d32fde92aca7cde309ecde0567acb5

Copyright registration time

2026-07-06T07:22:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T13:25:45Z

Bitcoin block

957041

Canonical record hash

sha256:acd2054c8a3e251c5cb787e75a36a628d10ad9841cd636fc6a38479aca2fdead

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC AUFFF1800117

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.