String Quartet in F Major, Op. 3, No. 5, Hob.III:17, "Serenade": II. Serenade: Andante cantabile (attrib. to Hoffstetter)

Recording identifiers

ISRC

HKI190105008

Release date of the album this recording appears on

2011-03-15

CopyrightID (CopyrightChains transaction hash)

0xd6022ef1907d572290934fc75705f99bbe2d7afbb8aa9117f281f1ae65774dbe

Copyright registration time

2026-01-28T18:46:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:47:07Z

Bitcoin block

953513

Canonical record hash

sha256:f581a5e6d7c11f7a13bf25b7451fdd0fbf902bdb4aeb0d8119e8be9432c05354

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Download the anchored registration record (its SHA-256 is the canonical record hash above)
• Recording evidence summary for ISRC HKI190105008

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.