Karolina Gočeva (, ; born 28 April 1980), sometimes credited as Karolina Gocheva or known mononymously as Karolina, is a Macedonian singer. She launched her music career in 1991 with a performance at
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 0xca9290602dc40b162702bdb43f5f8ecd46558060a55ab529c3328a59ce1b1bbf. 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/664fa614-0d66-4a63-9e5b-169f1630141a.json and https://artists.proofprofile.net/proofs/artist/664fa614-0d66-4a63-9e5b-169f1630141a.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 0xf8646a2a7dc39844700e76fc42214376bb605e9f0e8bb1fa049a4982d8b6aac1. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:05:35Z), 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/QZK6K2362440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84425ce600ee730dc5b36cbb7b58187b41d8d5caecadd82ba3aa15846e457746. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:07:37Z), 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/HRA042095270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bf71408ab7277111e842b84626066a8e1324cf7b3dab2631a3539edf5081c6. 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/HRA042095274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8439dce14824baf3780739288f599128981e031ab621681624142e34653d6c4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/HRA042095277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb511f257b30ae1d0046c13cce36703ea69fe6b0ab53ffb585336f0216d3704b. Chain 2 (Bitcoin): anchored in block 957554 (2026-07-11T10:39:45Z), 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/HRA042095279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2b75aa3b3f15648e419b1aa5cc45740128d2fe5f6610a9c16c6fba90bc0e44. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/HRA042095280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcddef5b4fce71e23832ea351180a0b7462a9be38b2eb5beedaf92425f045626. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:01:02Z), 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/HRA042095283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadcf283e9b2b228ebd3c05fa813be045ae86aed25aab3f8e345cf8d2a318d00. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/RSA141305245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf397fb1a99cf0b8ae6bad0fed3fa6e64a140e49685a671ac5d3908ef86597996. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:23:25Z), 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/RSA141305249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8acd277f0174b363e0b310f7446882ac520acc0d74e1ae16856e8235b3788f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/RSA141305253.
Tri boje zvuka (Live at RTS Studio 8, 2017)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83715b7265f88cbeb4bdc05f5760eb446fbee920cfeb5c1b9e7a9d855d6879d3. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/HRA041990489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa40afe250b1364f094cae11d343bc76dc2b785ab750dbd008e765e64a7eb801. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/HRA041990490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71358b2eb0313fd25ed12824f73d82b8de947bbe17c9f6be4b58bb9a493081d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ATR981269764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149fbee1961427947112acbf7c0d394885ed28fe324836e6b01dcf1f1d05057d. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZTBC2429676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a6ab3c7343dd69072348d6356b653c84d0d7b21477e4dffd341daa2fdebd5c. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZNWY2595185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c5aee9fbb68eb9cd4590718cb02ecee89b385ebe8b0dfbea30b7f605e47cf6. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZPLS2594474.