Renato Teixeira de Oliveira (born May 20, 1945) is a Brazilian singer-songwriter. He is a representative of sertanejo music and folk rock, linked to the caipira culture and dialect. Teixeira is the au
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 0x1264be28634244179bcf1b408bd3e15fbf397ef178ae1d355c99b9a491fdbd6a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d512f547-31e2-4710-969e-e6f6e885903e.json and https://artists.proofprofile.net/proofs/artist/d512f547-31e2-4710-969e-e6f6e885903e.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 0xa22fbaebee6825e5230eff216f6aabe7803ffdee8feeda9ce726ccb5ae739f41. 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/BXDFR1800043.
Vida Boa (feat. Renato Teixeira) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11462b3b5b51d2c315aad946456ed5c5ca9bf52f20a99bab0463b5f79df284b. 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/BRSME0900873.
As Grandes Décadas Da Música Popular Brasileira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d47fe1006bef8fe465fac40484411d8f459566f2a200cfec7fb9f58f0f8963. 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/BRBMG7800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab05c608e71cc52bc5c55361dfa81ff45f0aee32b4395775da574bf20788bf85. 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/BRCKP1000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b128e43ce821c643346bbf904a632a7d2cc62791cfb451248316aa618c7d2fa. 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/BR56G1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a23cda6812a16f3d20b384516e30195165f237d70fb0cfbb806b31b0b51a4b. 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/BRCKP1000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8704d66d5d9f107447d2a95794f6d0620f711d3ff4ea1203bf231eeed4a91d6. 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/BRP511500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2521e685068b099a57111bcbb3f25dfb2c36153f686a32c545290c6201b46bf. 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/BRP511500016.
Caipiríssimo (Clássicos e Jóias da Música Caipira)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb408c1f5ec605e5f2a1ace6722f846b36d135c8a0dd8ef5b1e9cfd973e9509f7. 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/QMFMG1358436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdb7ea31f79fa317579c68ff1a91e8426785ea5de8191414e2ec46ba2653d55. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMFMG1358440.
Maria Bethânia - Noite Luzidia (ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799fc85d8ae0b0fbb528a951b30a48a2e961e378a0a51c0452a0dcfaec2249eb. 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/BRPUI1200510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a46cfa1d5154e47b7e9b7adbe65245462cf739d4e3517ac6c37326ce6d76cd8. 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/BCUDX2200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ca5712b88d40b5aa1e819d37f46d5a6a9123a13ab89a6d3286bbba7274961e. 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/BCUDX2200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca6e998d1bf64efcf172a772d2f23400a75c76b2ca4ddc3b6f6e84840aac422. 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/BRKUA1900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58536c525d1e9b84180b2061452af7cdff98d0cde2ba65320d87a1e1ffb292a0. 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/BRKUA1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a46cfa1d5154e47b7e9b7adbe65245462cf739d4e3517ac6c37326ce6d76cd8. 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/BCUDX2200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26a6fe368aa7945d525daad3f7b5cc8d33671fdfd6e1ee06b3f574fa78789c5. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QMFMG1358445.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Suite do Trem: 1º Vagão: Trem da Gerais, 2º Vagão: Maria Louca, 3º Vagão: Zé Granfino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3936508eed7b7e3b019f077ddb4c3608eb395111e22063e4319db7a5267002b. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QMFMG1358449.