Karoline dos Santos Oliveira (born January 1, 1986), known professionally as Karol Conká (), is a Brazilian rapper, singer and songwriter. Her music is a blend of modern hip-hop and rap with sounds fr
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 0xfca9bcbb69a0a99bcf485d9a7695feff0f85e032aad3439d78d4f734afd40333. 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/ff8c9eb8-2928-4660-86bd-ed970fa26185.json and https://artists.proofprofile.net/proofs/artist/ff8c9eb8-2928-4660-86bd-ed970fa26185.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 0xa759d2ae08f89808fc75a09dccf36e90a723259b3b8876940b1d332d023d053f. 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/BXKOA2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb79ad2ab211700925755786ecf9a2789b539daa863092fef3deab3a6534a1c5. 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/BXKOA2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd593e20c9a8591f7ff6c1fe99d94af50515ef70d08a7b2ff8fa91284cd769b4e. 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/BXKOA2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4b14a2002a46995f93587118b711f3f0c786c986e0575d5c6323865d5bc3c9. 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/BXKOA2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17e33de7184efd24a0a734c73956412f9974a78cc6b315bf76d1702185ff007. 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/BXKOA1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b158cd65237c573bd943ba59d311ca254f604a2f7575a8addfd54878e5c617. 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/BXKOA1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e61b24728a071c29d63a28c87bf37edbdf1c44a892355a8808fdf01ad00462. 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/BXKOA1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc645cebccbd4b0f1a72d8e2f326eb4b893468d6af3a7c9781aceb1270e9ffbd3. 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/BXKOA1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89508619abf25d47dbb92f604e6e0da5c6376059b7019ac5c566c750f92e127. 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/BXKOA1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670e259395eb92c20476214c3b248320e104fced28a351a07b71c49b1511526c. 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/BXKOA2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9ca2f7ddec665f6fdd2a2c723e0af4dc042dde5fc2404833a942309e296094. 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/BRSME2300217.
MAMACITA (Deekapz remix) (feat. Deekapz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23943ccf33fca72af9422b108b3c2288b42815edc398630eed971c2c43d09d9. 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/BRSME2300237.
MAMACITA (Rafinha RSQ remix) (feat. Rafinha RSQ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77825d428101f682c82e69bf7c43a93b558787d8ec4fd9ca3d95f810e0ec439a. 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/BRSME2300241.
MAMACITA (Fodassy remix) (feat. Fodassy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a7c01a6162e4d0758f303c1905e8e630d21bc267a26e52915b3bfbb6f47e6d. 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/BRSME2300240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c53b99e651a824f2c24eb60be8464a884a8a4f46e3cfa2016a4dff5d074fb97. 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/BRWMB2200707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78873bf7b5fd7b087cef5c62fbbbb696c62d7d8d3a780abb8e40162c11791d4. 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/BXKOA2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aaa2f434a65f529cb80bbedba3463ec5f5fab9ead3e3dfe17cbd40af0a5e092. 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/BXOPY2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4b14a2002a46995f93587118b711f3f0c786c986e0575d5c6323865d5bc3c9. 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/BXKOA2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162217c6535a79a9deec6bfa4c2150723d7912902f4f90ee90b16c2d2d647e1c. 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/BX7132000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ff1af6ccec0a0fed26edd60675186a95075028e739baa3c1cd190abd4b453e. 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/BXKOA1900023.
Karol Conká (Ao Vivo no YouTube Music Night)
Nossa Que Isso (feat. Rebecca & MC Rogê)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1148b734ffb808b281cf51b8c6fe8520c51454e0e02b4195fd867bb9bb9017. 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/BXIH81900001.
Cabeça de Nego (Prod. Instituto e Boss in Drama)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee984fdea603230a0fac92d7f536f1bd4f7704404e58d39a3aa78a7a40ae4025. 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/BRKOL1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7b139457c8167c129f5a89fc4db1f08ff21aa6e65e38a9cf1c1fc3c66e7f51. 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/BXBFB1600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c933b8801bdaeb05367403d771204d844063f8eb0fe3efc90988868ba1c964. 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/BXBFB1500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76541e6dd69ce4e562220176e42b60526e762844024efe29eb334ff7a1b8dfda. 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/BRECI1500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09d04ce497ca48d4b3d3e4ffdcf10abfb8ea9752b76e8951fd80fcbabc5644e. 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/BRECI1400087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3328414ab742defcc136e68fe9be39323fb6abffc9a7245fd4156f5f04d415bc. 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/BRDEP1500318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aaa73ad1e04446152e0bf65d6caf4affd04ccb43ff4187bd2836d70db121ea7. 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/BRDEP1300019.