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 0xf02a9abccbcc49579ed6d889c37fd0d91e194740b2fd5dabea9efa7ed641e56f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/844fcdae-d362-4753-851c-0b62bf0983ec.json and https://artists.proofprofile.net/proofs/artist/844fcdae-d362-4753-851c-0b62bf0983ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Não Sou Nascida do Fado - Fado Meia Noite
Põe o Teu Cravo Encarnado - Fado Alfacinha
Se o Mundo Dá Tantas Voltas - Fado Menor Com Versículo
Teus Olhos São Dois Garotos - Fado Corrido
É Sempre Assim... Entre Vinho Tinto e Gin! (with Sangre Ibérico & Ângelo Freire)
Alentejo Um Ar de Festa (with Vitorino & Jorge Fernando)
Uma Ponta d'Ilusão (with Cuca Roseta, Edu Miranda, Ângelo Freire & Máximo Ciuro)
Caminho (with Gonçalo Salgueiro & Ângelo Freire)
Culpas Par'as Desculpas (with Filipa Cardoso, Ângelo Freire & David Jeronimo)
Meu Amigo (with Jorge Fernando & Ângelo Freire)
A Luz do Teu Sorriso (with José Cid & Big Band)
Por Magia ou Por Encanto (with Maria da Fé & José Manuel Neto)
Cantar É Celebrar a Poesia (with FF & Ângelo Freire)
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 0x2ad25443d9de334d0de6d4daf46eae8271d7a7d9b3bea14d7935fab1a6c027aa. 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/PT3KV2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131537477fafca1cc13bfef7fd8c27e34ff7df0d42344d74d85d95177d8f3a93. 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/PT3KV2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb35551ab9eff8c320eeef04143d598df942f9305db81a4e21fd17dea6163053. 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/PT3KV2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d30aeb4cff896315ad65b8d96007b01e5e0568294b1eda4911a6804a0b4963. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PT3KV2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71322d02e597db8025a9b04539e78cbb87888fa23bbbb0265d705b3e6921142a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/PT3KV2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e31221173e9dc5613936ae40ebf5a6ed2a39fba8a5274554c2b9de5041b0662. 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/PT6FK2300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a38b0ed0c666913371bdf522f4697b2c8b5d52e83e463153aa578deb1417c5. 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/PT6FK2300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f696b62e4d5ae9b32996e4382bc7fad86be4d18ea847756fe89f70406887080. 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/PT6FK2300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37299f36508a1eeb853883f071f9d5d98f3e081a02a1bb352f0c690072d3d449. 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/PT6FK2300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c203116ad1207c8108bb808000045f7dba20083f1b26cd7119ab6a4e38c5cd. Chain 2 (Bitcoin): anchored in block 957244 (2026-07-09T01:44:02Z), 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/PT6FK2300054.
Vencedor Absoluto Bravo, Bravíssimo 2000