ISRC DEN960400803
Verified recording
DEN960400803 is “Four Pieces for String Quartet, Op. 81, MWV R 35: I. Tema con Variazione” by Felix Mendelssohn,
registered on the CopyrightChains blockchain with CopyrightID
0x507d07d41be9e239b24c1efd307170458e585e6be3d3477024b64ce5d4d9a8b6 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960400803.
Recording identifiers
- ISRC
- DEN960400803
- Title
- Four Pieces for String Quartet, Op. 81, MWV R 35: I. Tema con Variazione
- Artist
- Felix Mendelssohn
- CopyrightID (CopyrightChains transaction hash)
0x507d07d41be9e239b24c1efd307170458e585e6be3d3477024b64ce5d4d9a8b6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:0c43d95801b90c7897a6b0e08261862cb5b1eca2df9874b776a1be1bf1fe83ac- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960400803
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Four Pieces for String Quartet, Op. 81, MWV R 35: I. Tema con Variazione · Machine-readable JSON-LD