Piano Sonata No. 11 In A, K.331 -"Alla Turca": 2. Menuetto - 1975 Recording

Recording identifiers

ISRC

NLA507500348

Release date of the album this recording appears on

2016-01-15

CopyrightID (CopyrightChains transaction hash)

0x8efa462c8e5f93b57ecb3db5cf2269bc797399df122d6448e5e88f50111ed4ab

Copyright registration time

2026-06-27T06:37:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:f7505012adf92455c6fbd6601f784f22b38d28ef4bc3b0aee177f9ce1d4690bd

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC NLA507500348

What this proof establishes

This recording was released in 2016, 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.