{"copyright_id":"0xafbb01bc80bc72da9ccc0d8d873583195ea5e6b9446b07ad54dc07296e6ba027","name":"Bartolomeo Tromboncino","registered_at":"2026-06-15T03:07:40Z","symbol":"NIM0662822","token_address":"0x6cd76bf5b6b6fa7e3dc3c12a0fb2f8d4feeefd25","type":"artist","uuid":"d749e796-a304-4d6c-abc7-1f769adbb7ed"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbb01bc80bc72da9ccc0d8d873583195ea5e6b9446b07ad54dc07296e6ba027. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d749e796-a304-4d6c-abc7-1f769adbb7ed.json and https://artists.proofprofile.net/proofs/artist/d749e796-a304-4d6c-abc7-1f769adbb7ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Frottole: Non val acqua al mio gran foco
Frottole: Bench'el ciel me t'habbi tolto
Frottole intabulate da sonare: Su, su, leva
Canzoni nove con alcune scelte: Ochi mei, lassi
Frottole, Book 1: Crudel, come mai potesti
Canzoni sonett strambotti e frottole, Book 4: Queste non son più lagrime
Frottole, Book 3: Poi che volse la mia stella
Frottole, Book 1: Vale, diva mia, va in pac
Fioretti di Frottole, Book 2: Cum rides mihi
Frottole, Book 2: Movesi il vechiarel canuto
Frottole, Book 1: Vox clamantis in deserto
Frottole, Book 3: Hor ch'io son de preson fora
Canzoni sonett strambotti e frottole, Book 4: Queste non son piu lagrime
Dolermi sempre voglio (in Tenori e contrabassi intabulati col sopran in canto)
Tenori e contrabassi intabulati col sopran in canto: No. 41, Dolermi sempre voglio
Dictionary of Medieval & Renaissance Instruments
Zephyro spira e il bel tempo rimena (Arr. for Baroque Violin, Theorbo, Archlute & 2 Guitars by Anonymous)
Tromboncino & Cara: Dialogo d'Amore, Frottolas for Isabella d'Este
Come haro donque ardire: Bartolomeo Tromboncino
Se é debile il filo in Frottole, Libro VII