Fernando de Ouro Preto (April 27, 1964), better known as Dinho Ouro Preto, is a Brazilian singer and songwriter. He is the lead singer of the band Capital Inicial, brother of musician Ico Ouro Preto,
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 0x31bd2d6f9898fec241917b01081b5d288ae778ec9e68ee6598b8a9d1b56e5dbf. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2932a32b-7fa0-4a90-bf94-8f326e0de680.json and https://artists.proofprofile.net/proofs/artist/2932a32b-7fa0-4a90-bf94-8f326e0de680.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 0x3f847508fe3b59464868410d1ff419d3cefe05fb38ffd00493f834fa7be47f7d. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:09:59Z), 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/BRSME1200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfca06c6830af80cbdb9a4daaba3ea55c9bddcbc62ace9fb0014112049d16abb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BRSME1200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdceb294f122a75fe001a4d3e45a94c2395849432627b296ce41928f178af568a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BX3EF1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacd86b5652bd49af1dbeda139d41cd85bf405f8573cddc9eadd8420cbabcfd1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BX3EF1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223a3008ba65e9dea7980da164121992c8cefcc76fd8e6aebf1a7ecc9d783032. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BX3EF1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630edce9d880fcfc206b993b816867e9d890b49b531e4237866f6b5d1e7cb6c1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BX3EF1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdceb294f122a75fe001a4d3e45a94c2395849432627b296ce41928f178af568a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:56:45Z), 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/BX3EF1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911b9a759e585209cde19ea84fc19c27f023e82d0824f10572aee4ef666c228d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BX3EF1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d11ccf2200e5591cce034b68b7deaee2f311f9807485c21c3c0fbc3886e5c73. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRUKM1500117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d06d6d9a6a65b8f23e661a46a5525d32f793384a9a266ff33799bd0006e135c. 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/BRFFP1800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9ea8d7375764f9acab4920e24e1b819d208296ec2ecd130f24e35c8e1c1b8b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRXYZ1300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c52a086d8379b9f7daf4c58b625a6dc05f5d209cc78aee2f5b3497c9b8bad8b. 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/BRUKM1500118.
Marcianos Invadem A Terra - Ao Vivo No Rio De Janeiro / 2005
Multishow Ao Vivo Renato Russo Uma Celebração (Ao Vivo No Rio De Janeiro / 2005 / Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98304aa8db4bf8e3eb00c4155dd88b8623c212084d656305a1e134f2f2be50f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRUM71805118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc104a11cfdf2592452b5520c1fec5282880ada8c8ec61763046a19f5fa9b1bb9. 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/BRECI1700076.