ISRC USSM11303881
Verified recording
USSM11303881 is “Le nozze di Figaro, K. 492: Atto Quarto: Contessa perdono (Il Conte, La Contessa, Susanna, Barbarina, Cherubino, Marcellina, Basilio, Antonio, Figaro)” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x15523983341d5b28003e182733575496a8890ae9532e22a0f20843749d5c78ac and independently timestamped
in Bitcoin block 960160 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303881.
Recording identifiers
- ISRC
- USSM11303881
- Title
- Le nozze di Figaro, K. 492: Atto Quarto: Contessa perdono (Il Conte, La Contessa, Susanna, Barbarina, Cherubino, Marcellina, Basilio, Antonio, Figaro)
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x15523983341d5b28003e182733575496a8890ae9532e22a0f20843749d5c78ac
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T22:48:59+00:00
- Bitcoin block
- 960160
- Canonical record hash
sha256:009a5860361b4a905e3d94182697f5619c0d66484bcbf287d7677d861eae5018- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303881
- Bitcoin block existence check
- https://blockstream.info/api/block/960160
Full record
Track page: Le nozze di Figaro, K. 492: Atto Quarto: Contessa perdono (Il Conte, La Contessa, Susanna, Barbarina, Cherubino, Marcellina, Basilio, Antonio, Figaro) · Machine-readable JSON-LD