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 0xe4d9137bf096becadc23c6ad8cef174537b62db8d000117e0a71bcf07bc63a35. 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/522c5144-d471-430c-a9ca-278abf561953.json and https://artists.proofprofile.net/proofs/artist/522c5144-d471-430c-a9ca-278abf561953.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 0x1ac75c96b320c97062ba8ede12d463cd82165eaeadb11e3891c8634daf002baa. 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/US3DF2209794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c42d5281c63d41028fff2e05a19f79fef313e76626dc437e37e97750b7ea5c4. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/US3DF2209804.
Dj Narru - Dj LK No Beat - Dj Molck -Senta Ne Mim
Dj Narru - Dj Barata - Tu Tá No Baile De Favela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f6e684dbdbca52e95c14b1a72cdb1d66ddd7b47b6abe5d78dededfb3d71961. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T10:59:04Z), 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/BX4IU2309893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f97eccf440bdee61f8a3beda5429c1717cd413c92903e3183eecd0c8dbf4b2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BX4IU2309884.
Dj Narru - Hoje Eu Quero Ser Sua (Mc Marsha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7504243ee80f1918b35e2597bce33d368455f4ef5c5757066d4af4fc55f2882. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QZNJV2471591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdac446b0ccf2b8da4ebb5332722def6f8dd03c6693189853bbbb53f4e008ce. 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/QZNJV2471635.
Dia dos Namorados X Então Vem Abrindo as Pernas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0517a6637e32d53133d8fc6895bc8be6d7bd64450ba2a7c26aca1fc2d087ef1c. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZNJV2489984.
Fim de Ano Tá Chegando X Vou Namorar pra Que
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f382f73f98059e9964c74560fd4fdafaf81fc081fb045b8dbcaedab70e09a38. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZNJV2489983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c2ac2e3d8dd3a4b5a7805ca4ea279b9e7e53bae828fc9d254e5ba4b8e4fd51. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZNJV2489982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be193dec7e89b65ed1a57f0ae88f758116469387376447debc56e647c913a18. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QZGLS2555611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033015ce9c5a2db24785927604717639abd9c948f3851a4c027013f8c64eb733. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZNJZ2557816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c797668e86b13dc4a528a280977d079fcf3b866ff81b33637bb445467cfd9cb. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:28:16Z), 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/BCIH82216250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406b7cbaedfc28e3f55bbd0d63bec4a3b124f7e89455c5d630f81986ef314f8c. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:56:07Z), 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/QZTVM2533895.
Mega dos Menor do Crime - Vou Socar Empurrar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fb6fa06064fef1afe67bfcd758ec9a82bd2206f451982a4f7a49f4d1f4eeb2. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:32:36Z), 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/BCIH82216668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86528a118e1c4213396c1817cd9034c54e8ed4bf1162a092d190ce98a1da8283. 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/GBMA22418380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26e6e826611aa1a77cb3b29603c9d8aa109a8e4a9a669cdf26be0bb499471ed. 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/BXIV82482168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd4f0a08859ae13cd285d244c214ad13c6c0760982559275aa47aedea425985. 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/BCM9B2400687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83331e9b530ee2a6ddb7d365dba962e2707e9d454a340a7c3c8ee68dab1fe92. 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/BC7MM2400191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29ae5a712a51fd5aaeb75556ec5e41ff7b9eb756b1fb7aca4afeb49ea467b99. 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/UKXN22530291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650b17be7a2f213029a7cc2611d76e4c1b13db508d133d249dcf5a9fc4c24c09. 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/BCM9B2402311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b12ed4158530f11bfcc950f2a6ebf9d1d5d3e307f0dd59bece2a6d68a02414. 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/GXF9Q2523440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5013bbee450e4f3062aecc655775fc304e3554a5809e4a30b4c8e953fb128b. 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/BRKTP2400044.