Piano Sonata No. 31 in A flat, Op. 110: 3. Adagio ma non troppo - Fuga (Allegro ma non troppo)

Recording identifiers

ISRC

NLA507300598

Release date of the album this recording appears on

2004-01-01

CopyrightID (CopyrightChains transaction hash)

0x93789e97e54a5fa9c1ff8fd16e14d1123c1e253c275b433c2ea8463c81e1b973

Copyright registration time

2026-07-30T06:15:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T06:39:12Z

Bitcoin block

960216

Canonical record hash

sha256:f93c60c62310653fe88a5ecdae9ae028ba93694e341b6e02428e0a1b39efe4df

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA507300598

What this proof establishes

This recording was released in 2004, 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.