Sonatina in G Major, Op. 20, No. 1: II. Rondo. Allegretto. Tempo di minuetto

Recording identifiers

ISRC

USL4R2174141

Release date of the album this recording appears on

2021-12-10

CopyrightID (CopyrightChains transaction hash)

0xbd7c4ce1063fabaa8751534082cb88ace3fe20a4bcc4ba7d815620966c825bfa

Copyright registration time

2026-06-27T16:08:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:488a39014424c7fc6da53072ce0f59f677dceb238e901ea54b5249408784eddf

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USL4R2174141

What this proof establishes

This recording was released in 2021, 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.