Sonata for Piano 4 Hands in B-Flat Major, K. 358: III. Molto presto

Recording identifiers

ISRC

NLA507619606

Release date of the album this recording appears on

2005-01-01

CopyrightID (CopyrightChains transaction hash)

0xef5990b2c5d17252bf912430a9473f2ca35a09be0dcb06eed3a49d1c77aa2782

Copyright registration time

2026-07-29T22:43:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T22:48:59Z

Bitcoin block

960160

Canonical record hash

sha256:517fdcd9f9f99987ab4f63642e443ae638e7eb1c6f51ee422edefe3ec366631d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA507619606

What this proof establishes

This recording was released in 2005, 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.