ISRC FRZ149813060
Verified recording
FRZ149813060 is “Così fan tutte, K. 588: Act 1: Duetto "Ah Guarda, Sorella"” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x42c99d96c854d539e648ae78bf54d3bccfa2599dcfee6c6b34a30e8597421d34 and independently timestamped
in Bitcoin block 959123 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ149813060.
Recording identifiers
- ISRC
- FRZ149813060
- Title
- Così fan tutte, K. 588: Act 1: Duetto "Ah Guarda, Sorella"
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x42c99d96c854d539e648ae78bf54d3bccfa2599dcfee6c6b34a30e8597421d34
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T11:35:32+00:00
- Bitcoin block
- 959123
- Canonical record hash
sha256:c5e3dccdf9a116c5aa6c4c4609ce2f721da06305a650949d334fd7c492856e91- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ149813060
- Bitcoin block existence check
- https://blockstream.info/api/block/959123
Full record
Track page: Così fan tutte, K. 588: Act 1: Duetto "Ah Guarda, Sorella" · Machine-readable JSON-LD