ISRC US5541304817
Verified recording
US5541304817 is “The Marriage of Figaro, K. 492, Act II: Cherubin's Song - "Voi che sapete" (Instrumental Version)” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x1331c26cf6775b9d81b06ea6325d25e2b1bced5b0b19029cb3b8d8ddacacc63e and independently timestamped
in Bitcoin block 960418 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5541304817.
Recording identifiers
- ISRC
- US5541304817
- Title
- The Marriage of Figaro, K. 492, Act II: Cherubin's Song - "Voi che sapete" (Instrumental Version)
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x1331c26cf6775b9d81b06ea6325d25e2b1bced5b0b19029cb3b8d8ddacacc63e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:20:15+00:00
- Bitcoin block
- 960418
- Canonical record hash
sha256:cc01753f5593624a49fe6bf4ecbbe76ee731d38afeb974cc61e85f3ab8379338- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5541304817
- Bitcoin block existence check
- https://blockstream.info/api/block/960418
Full record
Track page: The Marriage of Figaro, K. 492, Act II: Cherubin's Song - "Voi che sapete" (Instrumental Version) · Machine-readable JSON-LD