ISRC DEF059404953
Verified recording
DEF059404953 is “String Quartet No. 9 in C Major, Op. 59, No. 3 "Rasumovsky": III. Menuetto. Grazioso” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x6a4c6dc4a734abe7b52d47ccd9876c0417f40cc43b4499b694271d5a86acc163 and independently timestamped
in Bitcoin block 956312 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404953.
Recording identifiers
- ISRC
- DEF059404953
- Title
- String Quartet No. 9 in C Major, Op. 59, No. 3 "Rasumovsky": III. Menuetto. Grazioso
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x6a4c6dc4a734abe7b52d47ccd9876c0417f40cc43b4499b694271d5a86acc163
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T05:09:12+00:00
- Bitcoin block
- 956312
- Canonical record hash
sha256:5f11d63750029d3bbaea503a52d782c5086e387d8f1e23723f2b2f4e705d49b0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059404953
- Bitcoin block existence check
- https://blockstream.info/api/block/956312
Full record
Track page: String Quartet No. 9 in C Major, Op. 59, No. 3 "Rasumovsky": III. Menuetto. Grazioso · Machine-readable JSON-LD