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 0xe489c3ff46fc0665651254e2925e82a95ac68faa4ca7926cffe43cf997441701. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e6bec7f-2259-490e-884f-2bbc9f6bcc42.json and https://artists.proofprofile.net/proofs/artist/3e6bec7f-2259-490e-884f-2bbc9f6bcc42.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cantigas de Amigo: No. 1. Ondas de mar de Vigo
Cantigas de Amigo: No. 2. Mandad' ei comigo
Cantigas de Amigo: No. 3. Mia irmana fremosa
Cantigas de Amigo: No. 4. Ai Deus, se sab' ora meu amigo
Cantigas de Amigo: No. 5. Quantas sabedes amare amigo
Cantigas de Amigo: No. 6. Eno sagrado en Vigo
Cantigas de Amigo: No. 7. Ai ondas que eu vin veere
Unicorn Songs: No. 1. Back Through the Mists of Time
Unicorn Songs: No. 2. The Lady and the Unicorn
Pieces de clavecin, Book 3: 14th Ordre in D Major-minor: The Nightingale in Love I
Pieces de clavecin, Book 3: 14th Ordre in D Major-minor: The Nightingale in Love II
Pieces de clavecin, Book 3: 14th Ordre in D Major-minor: The Startled Linnet
Pieces de clavecin, Book 3: 14th Ordre in D Major-minor: The Nightingale Victorious
Cantigas de amigo: No. 1, Ondas de mar de Vigo
Cantigas de amigo: No. 2, Mandad' ei comigo
Cantigas de amigo: No. 3, Mia irmana fremosa
Cantigas de amigo: No. 4, Ai Deus, se sab' ora meu amigo
Cantigas de amigo: No. 5, Quantas sabedes amar amigo
Cantigas de amigo: No. 6, Eno sagrado en Vigo
Cantigas de amigo: No. 7, Ai ondas que eu vin veere
Unicorn Songs: No. 1, Back Through the Mists of Time
Unicorn Songs: No. 2, The Lady and the Unicorn
Troisième livre de pièces de clavecin, Ordre XIV: Le rossignol en amour (1)
Troisième livre de pièces de clavecin, Ordre XIV: Le rossignol en amour (2)
Troisième livre de pièces de clavecin, Ordre XIV: La linotte effarouchée
Troisième livre de pièces de clavecin, Ordre XIV: Le rossignol vainqueur
When Kempe did dance alone (Robin Hood, Maid Marian and Little John are gone)
Bookes of Ayres, Book 4: Young and simple though I am
Book of Songs, Book 2: Fine knacks for ladies
Book of Songs, Book 2: O sweet woods, the delight of solitariness
When Kempe Did Dance Alone (Robin Hood, Maid Marian and Little John Are Gone)
Bookes of Ayres, Book 4: Young and Simple Though I Am
Book of Songs, Book 2: Fine Knacks for Ladies
Book of Songs, Book 2: O Sweet Woods, the Delight of Solitariness
In These Stones Horizons Sing: I. Agorawd [Overture] Part I: Cân yr Alltud [The Exile Song]