ISRC DES380013419
Verified recording
DES380013419 is “Quartet for Double Bass, Flute, Viola and Cello in D Major: III. Finale: Allegro” by Johannes Matthias Sperger,
registered on the CopyrightChains blockchain with CopyrightID
0x50918823d31834fe79c2653fd579094c9ffe4af3a609cd36c22c36f1289ef26b 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/DES380013419.
Recording identifiers
- ISRC
- DES380013419
- Title
- Quartet for Double Bass, Flute, Viola and Cello in D Major: III. Finale: Allegro
- Artist
- Johannes Matthias Sperger
- CopyrightID (CopyrightChains transaction hash)
0x50918823d31834fe79c2653fd579094c9ffe4af3a609cd36c22c36f1289ef26b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:e62f1e30465cfae15c36e96cd882b55faa70430f84ec3cb29cad7ac00fd1c24b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380013419
- 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: III. Finale: Allegro · Machine-readable JSON-LD