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 0x5aaa5554b84021610dcf086bff076e14fd86449f324bc3a070702bfb69f22cc5. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0f33569-9919-41f9-ae3f-b3d135bac1e6.json and https://artists.proofprofile.net/proofs/artist/a0f33569-9919-41f9-ae3f-b3d135bac1e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x90cacbd7445a3b495dfdb88cdaf709b31f377c76706003b78837dfe869f95ffb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PTRO11900336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6467c1ab71a85a483c90dbd5f01da49f31f2375622f718b9ab59bc21bc511626. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PTRO11900347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e748a5a5fa0c9ba1fb5cc670ba8a9166d29e94266c5bb48a59d388d50a7c099. 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/PTRO11900357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd7892fdab25c08fe8c5c20283b3a303e95528d181ba9561b736d94447eca94. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PTRO12200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9568f12274172d88982a0af78ca892830fa79afd9ea7afcd3e63c9937951441e. 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/PTRO12200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e04edece9c2444d3eee68a7a2a6e51575579fc24b63cd6d56a7a8d4a4bee42d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PT8DQ1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd125989a132c0ff5b1b366a699142651759c67a0806b99737b766327350d0c03. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PTRO12200355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efe27bc82ff06bcb3c9dd6663e20cfc27ac5702538af02c15582dc9d3b1de97. 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/PTRO12200356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105cb6df369a42681fbdf3ccc37ed49381ea04a6f9d5ac231d606ed2bd22fdb3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PTRO12200357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7da6d12385ffdbbcd4c3741e394469ff6bea5c2e76c7fdd7a50d8b82fca693. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PTRO12200360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a24d80b5790013625c4578173c27b7829276472e1dbaf98f3459a1b0af52b5c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PTRO12200362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb92ca0ce02c0dc245ae17e665912d75c2c2319e60ed5e287761d5f1ef21a07. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PTRO12200363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7bd498e50ad7778f2c93bb2d92f8b324f9154a4c1da0ba187221ee0b631666a. 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/PTRO12000329.
Conto Tradicional De Natal (A Comadre Pobre E a Comadre Rica)
Associação Cultural e Festiva "Os Sinos da Sé" de Braga
Uma Viagem Musical Pelo São João De Braga (medley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915a9fc7562501b8af539860a7196c191f72b6efcccbc1925b42b0ca55fed995. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PTRO12200210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab3123c36f3156c8ac35a09c0bfd3a1cfc5933eff6de77fa7323e7e2f0c826b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PTRO12200212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8942f62d2a200d87a881cbfd77c9fc079df8059c80216a15119d79519a878b6a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/PTRO12200213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb269ac892fb491f2c13b4c75e202ed19b00f0bb8ca8d88dca54cfa9a81c3fb88. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PTRO12200216.
E Repenica... Tradição Musical Do São João De Braga
Rapsódia a S. João (pastorinhos Do Deserto, Agora No S. João, Este Pandeiro Que Eu Toco/repenica)
Conservatório Calouste Gulbenkian de Braga
Carro Dos Pastores: Prece De Zacarias E Isabel
Carro Dos Pastores: Aparição Do Anjo a Zacarias
Carro Dos Pastores: Cântico Dos Pastores
Carro Dos Pastores: Anjo Anuncia Nascimento De João
Carro Dos Pastores: Saudação Dos Pastores a João Baptista
Hino Do S. João De Braga (versão Instrumental De Cavaquinhos)
Conjunto de Cavaquinhos Dr. Gonçalo Sampaio
Hino Da Cidade De Braga (versão Folclore)