String Quartet No. 16 in F Major, Op.135: III. Lento assai e cantante tranquillo

Recording by Ludwig van Beethoven.

Recording identifiers

ISRC
GBAYC8903050
Release date of the album this recording appears on
2005-09-13
CopyrightID (CopyrightChains transaction hash)
0x28a6213831781a4347baca10b5ff0b42f703466df57fc94f4b481b13d175f79b
Copyright registration time
2026-06-27T07:33:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:e4f18f7e7d71818822b9e5e79fbf57dd7d1a8ff5e0661e7f35997a344c8a7b57

What this proof establishes

This recording was released in 2005, 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.