Piano Sonata No. 4 in C Minor, Op. 29: II. Andante assai

Recording identifiers

ISRC

FINDE9900179

Release date of the album this recording appears on

1999-01-01

CopyrightID (CopyrightChains transaction hash)

0x8ecef3281a251e6c34b3d47722d7d4afb71144b5250624b107a458b3a6a63238

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T18:48:12Z

Bitcoin block

960448

Canonical record hash

sha256:8a68ee3e074451c714c399ac839f07542505148453e71c2b14b7dd6af1cfb14d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC FINDE9900179

What this proof establishes

This recording was released in 1999, 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.