ISRC USSM11303855
Verified recording
USSM11303855 is “Le nozze di Figaro, K. 492: Atto Terzo: Sull'aria... Che soave zeffiretto (No. 21, Duettino: Susanna, La Contessa)” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0xac2b5de1c7868416edbf6f462bc5baebe8751acaef80a146b59073450a423520 and independently timestamped
in Bitcoin block 960327 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303855.
Recording identifiers
- ISRC
- USSM11303855
- Title
- Le nozze di Figaro, K. 492: Atto Terzo: Sull'aria... Che soave zeffiretto (No. 21, Duettino: Susanna, La Contessa)
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0xac2b5de1c7868416edbf6f462bc5baebe8751acaef80a146b59073450a423520
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T00:26:26+00:00
- Bitcoin block
- 960327
- Canonical record hash
sha256:34d7f4cc10f415377a9881ec5fbffc29c6bc294201814d08c552c98e881dff73- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303855
- Bitcoin block existence check
- https://blockstream.info/api/block/960327
Full record
Track page: Le nozze di Figaro, K. 492: Atto Terzo: Sull'aria... Che soave zeffiretto (No. 21, Duettino: Susanna, La Contessa) · Machine-readable JSON-LD