Nika Turković (born 7 June 1995) is a Croatian singer and songwriter. She initially gained popularity through representing Croatia in the Junior Eurovision Song Contest 2004. Turković was cast in seve
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 0x65bbc324b588bfc1eb4c99ab3a9d72a08e63f21e365f7718e8b5a7bc4b2628c3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b2d9a33-43c3-404a-9661-2293f71ae452.json and https://artists.proofprofile.net/proofs/artist/0b2d9a33-43c3-404a-9661-2293f71ae452.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 0xa364f9f2577fce960a7f77f935cc78842991d3b1de1a617accab517d300c610c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/HRA102008819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38e82a58dd34b07d7602c1e0e79fa0a3c6dc4b7d35fa534c548b2f661d62ca0. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/HRA102009003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8a67a10a7318f6094374a890e0fa388bbaa3d97bc0720708ef2ab8f2b57d98. 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/HRA102009008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99cdcf5f8697d630fcbf909b635560689b3804151ab695949bc1fa2a74b00c2. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/HRA102009173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0463ef12024db419f489302ae66d32456151d2e1f9567640fcaae49c6c8044a. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/HRA102109479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e35495f476672fb9d406b2abec8a52f9584f54a104ad48338e3bb0d065b17d1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/HRA102109599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccc5f0b1368d3b47904bbed1b7c2bf664d5499258ff0a048a841a7d2ed6d418. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/HRA102209806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94aec0815a7f660375ff8ad86cb64a9b06fe1bb46312f6b1dc0452450f406a97. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/HRA102209920.
dok nas nema (Pocket Palma Botanica Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abe6fa30bb6f16be63dee525bc1fa36b6d1cb217620fc809b4a9df9fb798fcf. 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/HRA101908265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0463ef12024db419f489302ae66d32456151d2e1f9567640fcaae49c6c8044a. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/HRA102109479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3325820b72cd7089f1a741645919df0ae9cf4117f766f96a43835665d0c290e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/HRA102310028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe566a84c30abff032d227c225ca75f0a010f22f3791ca4118100a9a39f6a89d2. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/HRA102310029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028ebad8582d4cf0a84ecf38accbc7ccf7ab589ad254e92a37b4e2cd959ce3e9. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/HRA102410578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd8df6da12bcfeb7f4e7e5244854c10685f2b659e782fce52b0059ed0b328c3. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/HRA102310362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51ed8bd098dfc57014cd9bab188e4ad75d881dffc6393efb6f4dd2538231903. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/HRA102510846.