ISRC DES380013417
Verified recording
DES380013417 is “Quartet for Double Bass, Flute, Viola and Cello in D Major: I. Allegro con espressione” by Johannes Matthias Sperger,
registered on the CopyrightChains blockchain with CopyrightID
0x4d23a370d07506b08b1b237aa6c26e81d6edcb2c2891d3f0a934165cfb2c2dcb and independently timestamped
in Bitcoin block 960337 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380013417.
Recording identifiers
- ISRC
- DES380013417
- Title
- Quartet for Double Bass, Flute, Viola and Cello in D Major: I. Allegro con espressione
- Artist
- Johannes Matthias Sperger
- CopyrightID (CopyrightChains transaction hash)
0x4d23a370d07506b08b1b237aa6c26e81d6edcb2c2891d3f0a934165cfb2c2dcb
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:51:48+00:00
- Bitcoin block
- 960337
- Canonical record hash
sha256:07790cb2778b68299c1e8b8450d0650477667d177c504667279f472ea2e1cda6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380013417
- Bitcoin block existence check
- https://blockstream.info/api/block/960337
Full record
Track page: Quartet for Double Bass, Flute, Viola and Cello in D Major: I. Allegro con espressione · Machine-readable JSON-LD