String Quartet No. 16 in F Major, Op. 135: III. Lento assai, cantante e tranquillo (Transcr. M. Mussorgsky for Piano)

Recording identifiers

ISRC

NLE421903806

Release date of the album this recording appears on

2020-04-17

CopyrightID (CopyrightChains transaction hash)

0xee127bd22e5e7c716eb7cb581a821c5f5036789ffe9165b30b459efe311a08b8

Copyright registration time

2026-06-18T02:55:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:0e729323a910cee919c99ffb71c9a9093f4df588e697712a940fe5af8256f47c

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• Recording evidence summary for ISRC NLE421903806

What this proof establishes

This recording was released in 2020, 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.