Rafael de Faria Cortez (born October 25, 1976) is a Brazilian journalist, actor and comedian. Education and career Cortez graduated in journalism from PUC-SP and between 2008 and 2012 was a reporte
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 0xc2c750e2232d1857caa002f8a9e6c4adbad1a142be4254d8ff886b0122eae194. 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/fc7873db-f5f9-4000-aca4-aa09f21a526b.json and https://artists.proofprofile.net/proofs/artist/fc7873db-f5f9-4000-aca4-aa09f21a526b.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 → 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 0x92d0a2b28c7037b17e582f0f98164af5666fe5353c87793f585ea84283ac3ec0. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/BR9551600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f230813dc31a97e2fb6fc65230c982fded88d1085f9776aaa0a35c08c87c062. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BR9551600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0126e2391ad8ab5a27156bc4c2a2304158f618950a322845455dad3009fb22bb. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:06:51Z), 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/BR9551600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8170b9078f89c85b22c03354dc1a28aa3d6603485fb565a37999687336a07ca8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BR9551600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ae43a3215d32ec023cc2eadef56e0e0add81f4fa0643d2c92e2c69a61dfcf3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BR9551600021.
Cinengiocoronariografia / Coração de Jacaré / A Pipa do Vovô / Cuba Lança
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa504d6e5b371dc48c01e92470df8c5033239e32c765ad561487edfb2007eeba9. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:17:43Z), 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/BR9551600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6f19927c6285532b6f55bc6819847abbed98ccfec6aa6361985313fe440fc8. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/BR9551600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb5d78da476a675e39effbd5842e34515f5dbc955378bf6c88a32980c25ead6. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BR9551600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab4d80347365ba9792e45ebefcc67edf1cf0e93642d983b1a1a54229f40efce. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BR9551600027.
Voz e Violão - Clássicos da MPB Ao Vivo no Studio 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f639a25b8e8035cb2ac5b32acaade5dcd6d0acc917d3b89b3a0a40f67e4c5d. 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/BXRZ92000001.