Piano Sonata No. 2 in F Major, K. 280: II. Adagio

Recording identifiers

ISRC

SEWDL6142683

Release date of the album this recording appears on

2018-03-29

CopyrightID (CopyrightChains transaction hash)

0xc99303bbc33938bf13c7c2996b991d0a1be70e267f22fb4d67978b1d680d9471

Copyright registration time

2026-06-09T00:41:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T15:41:10Z

Bitcoin block

953528

Canonical record hash

sha256:c148df998867adf901c00fbd571efb4e23d84df4464ee4c514154e62c23b6d24

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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• Recording evidence summary for ISRC SEWDL6142683

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.