ISRC USSM11303820
Verified recording
USSM11303820 is “Le nozze di Figaro, K. 492: Atto Secondo: Porgi amor qualche ristoro (No. 11, Cavatina: La Contessa)” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0xc88cfa97897aec788d27f3cd63c5f6037680057508efb368f10cdea1d869e248 and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303820.
Recording identifiers
- ISRC
- USSM11303820
- Title
- Le nozze di Figaro, K. 492: Atto Secondo: Porgi amor qualche ristoro (No. 11, Cavatina: La Contessa)
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0xc88cfa97897aec788d27f3cd63c5f6037680057508efb368f10cdea1d869e248
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:fc8311e9ab617a7ebfe0a2efb9eaf4b161eb0070ef57e5a23521f6ba1d08bac0- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303820
- Bitcoin block existence check
- https://blockstream.info/api/block/956889
Full record
Track page: Le nozze di Figaro, K. 492: Atto Secondo: Porgi amor qualche ristoro (No. 11, Cavatina: La Contessa) · Machine-readable JSON-LD