1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x44a63e77c60b350c99e53e99787807112c3bad7490ebc0c1fe6866d9c86e8fcd. 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/e964c4f4-36eb-4f9d-b69f-f729eb3c52a7.json and https://artists.proofprofile.net/proofs/artist/e964c4f4-36eb-4f9d-b69f-f729eb3c52a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Escolas de Samba - Enredos - Mocidade Independente de Padre Miguel
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xcbdf350f553164fe2dd520b11593155293c98a5a4f04eb4360efee27841fb49e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRSME9300209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a10967644dfbe00f36a4c8556550433b8351997ccb19a5ac3efd99e7ef6c829. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRSME9300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1d5eb8268fe2cf732df5888d463a317306fd1bf7acbe90f14a89d3d0d625aa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRGES9100001.
Cana-Caiana, Cana-Roxa, Cana Fita, Cana Preta, Amarela, Pernambuco... Quero Vê Descer Suco, Na Pancada Do Ganzá
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72cee74ac2276ecd64c31a91f26b9299fd82768beca52d961764b88bdccd404. 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/BRGES0000005.
Quem Descobriu O Brasil, Foi Seu Cabral, No Dia 22 De Abril, Dois Meses Depois Do Carnaval
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b4c869b36cb5e6ebc6637526893c66b7a18c7f514f091cdbe8b65e0c52e1d1. 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/BRGES9900007.
Goytacazes... Tupy Or Not Tupy, In A South American Way
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3cd8d4c3031893660cb460d64426b011aab5f059bc366484a1d9993848d404. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRGES0100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72cee74ac2276ecd64c31a91f26b9299fd82768beca52d961764b88bdccd404. 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/BRGES0000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b4c869b36cb5e6ebc6637526893c66b7a18c7f514f091cdbe8b65e0c52e1d1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRGES9900007.
Welcome To The Sambadrome - The Samba Schools Parade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1037d66a90d2dbf941f92f1f1c5a049e7ce5c3a4a73ee795a72a9b67de8f1fe5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRGES1300029.