ISRC USSM11303826
Verified recording
USSM11303826 is “Le nozze di Figaro, K. 492: Atto Secondo: Quante buffonerie! (Recitativo: La Contessa, Susanna, Cherubino [Il Conte])” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x3f1bebed52ec7f84933ae249b0597ca0d3146b2f41ffa771790da544c37e9eb0 and independently timestamped
in Bitcoin block 960264 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303826.
Recording identifiers
- ISRC
- USSM11303826
- Title
- Le nozze di Figaro, K. 492: Atto Secondo: Quante buffonerie! (Recitativo: La Contessa, Susanna, Cherubino [Il Conte])
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x3f1bebed52ec7f84933ae249b0597ca0d3146b2f41ffa771790da544c37e9eb0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T14:36:16+00:00
- Bitcoin block
- 960264
- Canonical record hash
sha256:049970249db8d49787d5f90e1b84614076586449546d888ab90c8273d1745234- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303826
- Bitcoin block existence check
- https://blockstream.info/api/block/960264
Full record
Track page: Le nozze di Figaro, K. 492: Atto Secondo: Quante buffonerie! (Recitativo: La Contessa, Susanna, Cherubino [Il Conte]) · Machine-readable JSON-LD