Quatuor No. 2 in D Major: III. Notturno, Andante

Recording identifiers

ISRC

USA370688206

Release date of the album this recording appears on

2011-08-30

CopyrightID (CopyrightChains transaction hash)

0xa756c48198d81935b0ead0abecfb07cc8b2a0bb151acc1cf6058c40dfe2e2c0b

Copyright registration time

2026-07-31T05:05:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T05:17:02Z

Bitcoin block

960348

Canonical record hash

sha256:f00fecf3876de6a35a454983d0a7a22bb8914c7cb1a0e9896d2952b745476fe7

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USA370688206

What this proof establishes

This recording was released in 2011, 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.