ISRC DES380013418
Verified recording
DES380013418 is “Quartet for Double Bass, Flute, Viola and Cello in D Major: II. Andante grazioso” by Johannes Matthias Sperger,
registered on the CopyrightChains blockchain with CopyrightID
0x74cfdcdb43b1f98a3e697ae7415d9ea935a438b39f511c71ed304300cb6ce8e4 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380013418.
Recording identifiers
- ISRC
- DES380013418
- Title
- Quartet for Double Bass, Flute, Viola and Cello in D Major: II. Andante grazioso
- Artist
- Johannes Matthias Sperger
- CopyrightID (CopyrightChains transaction hash)
0x74cfdcdb43b1f98a3e697ae7415d9ea935a438b39f511c71ed304300cb6ce8e4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:e13bce2db68e50049e922006139956dd489dce961d7bd74e78164265a3543743- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380013418
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Quartet for Double Bass, Flute, Viola and Cello in D Major: II. Andante grazioso · Machine-readable JSON-LD