ISRC FRZ140309030
Verified recording
FRZ140309030 is “Le nozze di Figaro, K. 492, Atto II Scena 2: Recitativo. Quanto duolmi, Susanna (La Contessa, Susanna, Cherubino)” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x917d22b87766c8f669c7c3f66b4ef959185ea47b7752822b8a0f5153a230bd2a and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140309030.
Recording identifiers
- ISRC
- FRZ140309030
- Title
- Le nozze di Figaro, K. 492, Atto II Scena 2: Recitativo. Quanto duolmi, Susanna (La Contessa, Susanna, Cherubino)
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x917d22b87766c8f669c7c3f66b4ef959185ea47b7752822b8a0f5153a230bd2a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:71ed53fc5f786a54c32fb2e07263d74e39574cbc88927724e12702eb0584608e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140309030
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Le nozze di Figaro, K. 492, Atto II Scena 2: Recitativo. Quanto duolmi, Susanna (La Contessa, Susanna, Cherubino) · Machine-readable JSON-LD