Paulo Nazareth (b. 1977) is a Brazilian contemporary artist based in Belo Horizonte, Brazil. Nazareth has achieved acclaim for his distinctive approach to contemporary art. His work, which includes mu
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 0x7d400fb4b1fd69ad31d54b76cf38a3e492dc119fdde3b82e70d904b26766bbd2. 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/34ac8aef-9bde-4b5a-8313-706b69681539.json and https://artists.proofprofile.net/proofs/artist/34ac8aef-9bde-4b5a-8313-706b69681539.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 0x155edd96c0903dbc52d1491609172ba4d0511707757b73140eac32a6b5f6835e. 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/BRUM71902836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808295bb1da649f5f7d87175647acc24e3b3fe7a91126a4ca329c54a9a0acc2a. 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/BRV022200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fcdc8fbf07bbd7f7aa06d26be59f0abe5a6d850919358a45b54f98abf57ca2. 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/BR7JX1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959245d0366e997dcfaa34b1703a543a39a2e08a1690b7f4f6315a5dd49eb633. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BR7JX2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5c9f0ba5e2a33b5d6420cc0d413f8736a7bb57a23e45f112057094ac218433. 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/BR7JX2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecf558f2be02e9aacc137874b993d2efdb043a7b873a8d05818fb51048851d6. 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/BR7JX1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e562f8c7ac47ee7b407c713582ea68548316877005f0d9d004f3483ac48fc8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BR7JX1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a81b603c9af96b581a0ef947075a7ece62f9c7e40a237e32279ddab562eea5. 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/BXOFC1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74afe72af3fd8711badfa143fe42884d0eced07577712f47957d99670c2340ec. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BXOFC1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf450f244767121304a70aa2d36a6da8e095ceb59726576a31d61fb4327f466f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BXOFC1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096dc1b1b531eb53d7fa9ae7a43e0175abb59dd9f5f235626754625e3be74ba9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BXOFC1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bef140c71b7fae8c82eca71794143af614ed0ac231a642f442c66ec0131752e. 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/BR7JX1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a925a50fa57ca2e51948f801c66379e4588ea876038e2c35b84028b66a5e29. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BXT622000166.
Estado De Graça (feat. Nívea Soares) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849bafea23bd4cc1da9a8f5a51515a8924f352b8f5d0d9203936f5a561b40cfc. 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/BXKMK1800014.
Meu Grande Amor (feat. Sync 3) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd254d5d498186502025d37f1d6d14af11e7edd5d628b23f47b989f5a6f6a3210. 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/BXKMK1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ec9bf66bc9ab6444de6a75e5fadb2cea2adf7abcc2c4a0ee8f29c5429f4b86. 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/BXKMK1800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e6c55cb644478d636a2ae3ae4ad445d8ea69467d497ae351897655a53ea810. 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/BXKMK1800022.
Com Você Eu Topo (feat. César Menotti & Fabiano) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab40984f73f4077702226a94555df1c3c69b97fc4ecb83a6faf2ea554edef2e. 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/BXKMK1800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b1d8f58c50b5c074f8ec125dcc5ee0520e5d4cb940ebeb67b0fc76d6fb913a. 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/BXKMK1800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280ba314eef34742d239dbe977472f4b7c17d8ea684adb09d0c0f8b89a70a8da. 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/BXKMK1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4e2d4116f45368e073ff90d4ccf9689d5e943331d160f77b58b06bdff858d1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BXKMK1800024.
Sensacional (feat. Elyas Vianna & Minduca) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808e6f7489962e6675ac9d4cb9eafd824ed28f0508fba2188934298d086077db. 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/BXKMK1800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8323b0d661ad45789b8103bb51bbe810815ec5a841bd912f98d1ca3e5ceee391. 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/BRGB91400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450f22d06bb2e02869697229ca5e0376655a90cf4336ac9321f0708237b930a4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRGB91400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d04cecbf2610b9bbce9ddafbee45ec45d30ee3c842d7950f103c8717e5db3fc. 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/BRGB91400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd842aa180329adeae5abd1ab7a30d42ab3ec8dea111f2e58f81ca3b437fc4aa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRGB91400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad7a938f145ce9be82789c0106d5e2fef65f0946b7be287c5520fe9246e48de. 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/BRGB91400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d867bb89958070b407089173a88d1c28bd3cf229bf893b62611f2b0685c7ed3. 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/BCP982100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac79d3609084ae81e78ceab99d880ae0f19a592a52096b82a47a476e6b6abca. 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/QZ5AB1800932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e29b6d6529a67b65a99ec6c78ce5981a271b130a1a48e519ea070d8923dd58f. 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/US7VG1869477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8006c544944699c67976c9a6466445f0ba4938d27feeaaf8ccda61ae5128ef99. 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/BRYRC1700014.