ISRC USSM11303822
Verified recording
USSM11303822 is “Le nozze di Figaro, K. 492: Atto Secondo: Quanto duolmi, Susanna (Recitativo: La Contessa, Susanna, Cherubino)” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x8f6e03d16fe795d50ea81ae4fb2f66de7ef5f999076b7ee01842f197e81d9b73 and independently timestamped
in Bitcoin block 960258 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303822.
Recording identifiers
- ISRC
- USSM11303822
- Title
- Le nozze di Figaro, K. 492: Atto Secondo: Quanto duolmi, Susanna (Recitativo: La Contessa, Susanna, Cherubino)
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x8f6e03d16fe795d50ea81ae4fb2f66de7ef5f999076b7ee01842f197e81d9b73
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:45:34+00:00
- Bitcoin block
- 960258
- Canonical record hash
sha256:a933b071c3cfd53c814b3791fb717b18c42097a92aed711d1c0d55726b414a84- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303822
- Bitcoin block existence check
- https://blockstream.info/api/block/960258
Full record
Track page: Le nozze di Figaro, K. 492: Atto Secondo: Quanto duolmi, Susanna (Recitativo: La Contessa, Susanna, Cherubino) · Machine-readable JSON-LD