ISRC USSM11303829
Verified recording
USSM11303829 is “Le nozze di Figaro, K. 492: Atto Secondo: Dunque voi non aprite? (Recitativo: Il Conte, La Contessa)” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x94b6ce6d9c4ce9b94e55d283909d496f8e5c3f3239a2a26412193856d5788f4f and independently timestamped
in Bitcoin block 960220 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303829.
Recording identifiers
- ISRC
- USSM11303829
- Title
- Le nozze di Figaro, K. 492: Atto Secondo: Dunque voi non aprite? (Recitativo: Il Conte, La Contessa)
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x94b6ce6d9c4ce9b94e55d283909d496f8e5c3f3239a2a26412193856d5788f4f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T07:28:30+00:00
- Bitcoin block
- 960220
- Canonical record hash
sha256:21739550380594952a3c599f4e930f2a38f6980a8fc133e64e200a1eb81a0782- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303829
- Bitcoin block existence check
- https://blockstream.info/api/block/960220
Full record
Track page: Le nozze di Figaro, K. 492: Atto Secondo: Dunque voi non aprite? (Recitativo: Il Conte, La Contessa) · Machine-readable JSON-LD