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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8160885680658179ee237838376c83a4212f704a6a8d3418572e2fd544d433. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c7c862f-fa15-497f-b063-187bf50b3af6.json and https://artists.proofprofile.net/proofs/artist/3c7c862f-fa15-497f-b063-187bf50b3af6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
De Quem Estás Enamorado (De Quien Estás Enamorado)
Pot-Pourri: Sabor A Mi / La Barca / Sabra Dios
Pot-Pourri: Perseguição / Nem As Paredes Confesso / Ai Mouraria / Lisboa Antiga / Canção Do Mar
Eu te Amei, Eu te Amo, Eu Sempre te Amarei
Fogo e Paixão/Diana/Oh! Carol/Estúpido Cupido (Stupid Cupid)/Banho de Lua (Tintarella Di Luna)/La Bamba
Ilusões Sem Fim (Didn't We Almost Have It All)
Canta Fados - Uma Homenagem à Amália Rodrigues
Sem Ti / Jura-Me / Orgulho / Ninguém É de Ninguém
Faz-Me Rir / Meu Homem / Eu Te Amei, Eu Sempre Te Amarei
Dois Gênios - Adoniran Barbosa & Zé Kéti
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1c66bf3f3aacad1233a258349945a755c5365ed45928158e42f8c540289d33. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRECI0900231.