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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3ce959cfc5381323366a09174f79dcca73c0ec2dff984cc8ca1c4aa7b7bead. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b15dfd8-355c-41a3-809b-ef2b045cc296.json and https://artists.proofprofile.net/proofs/artist/2b15dfd8-355c-41a3-809b-ef2b045cc296.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72059b28040c79c32e3d3dfab1f465d0913b12c55189366665a715f4f1b58515. 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/BX7MG2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5520d9565ad3051e2b87dfd86f69f7e1607e01af091ecb73d8c9552512236c94. 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/BX7MG2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903b63818a5f519442d96a203c3432757d9b329fd61574e5582ded7fa3108201. 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/BX7MG2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58b4eed0ef4f45b5b537ad39eaacb5ba8b905996f6b4db87646744743dabb85. 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/BX7MG2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae53654cfc71f3eb9e51d4fa5c3bbb014c9b89ba458076a43c08c78bdfad8a6. 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/BX7MG2100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38acd12aa737f7aa8c8f2363972c84caf3bbbccbf1f791d58cdb925db2ba946e. 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/BX7MG2100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67fc31ac08d893fc5543d372715a92cdde6c6e9726e0b60612bc69228925ab6. 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/BX7MG2100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aedf2895ea1651dc838bcb46ea983c6398328555085955e6170b73155c849a9. 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/BX7MG2100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f6a21604dc77f728118cc9a69f088c913b594a478c0bd4ee4ba887d6e6a69a. 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/BX7MG2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f21ddb49935a62f5cbdd4200ca3003dc16bca8fe37412168ddc23391801449. 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/BX7MG2100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61bdf4645c2e23076fa816fff496ef806919618e9500935ddb70f4c2cb087e5. 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/BKDIV2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4d3c0515d9026cfe8ed8c846b50dbe07aaabf227418da27e8c6353b154df9a. 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/BKDIV2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ee595d0c50addd92d2574918e69b8904fbf1fdfd3b14b91740de47592cf4c6. 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/BKDIV2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97e0452f6dbe4c0332ec529948e1b0f4f62d35f3ce0e30bbde10d5378bf88ac. 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/BXUBN2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9c26d3123f76435cc12b549950326957a6470c5d842c08adc265d17ce3c33c. 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/BRUM72202081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80436726610649aac83607a9bf42c29e7c27312a6b72481193543fe0deb79e16. 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/BRUM72202092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ae67a7558446c22e73b3ce8f4906a48d156f7c0e3a12f4dfc57daa48fd42c5. 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/BRUM72202091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7b7d631f7fc924d8423ad924c2a5a8b0a565d68932307d9177c4a69371a578. 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/BRUM72202089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9924d213dcbee4c7fc953719c2b3fefccd2895f44866f618675f1d52b0397901. 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/BKDIV2500004.
Pique de Favela (feat. Crias da Música, DJ Swag do Complexo & DetonaCry)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e78b6b77081dd53250562f1968e3aaa61758a8c133ad9ec793178056b9d321. 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/BRSME2300703.
Vem pra Minha Base (feat. DJ MK o Mlk Sinistro)