Zorica Kondža (born 25 June 1960) is a Croatian pop-rock singer. She is best known for her soprano vocal range, which she displayed as the lead vocalist for the 1980s pop-rock music act Stijene. Since
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 0x3f735c6b8fb8218493f3e7e8c9959c94bbf55bc62c5c05e79ad783b08b717b56. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15ea87af-168c-42b0-8490-f3b1a149ce45.json and https://artists.proofprofile.net/proofs/artist/15ea87af-168c-42b0-8490-f3b1a149ce45.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
100 Originalnih Pjesama (Splitski Festival)
Festival Zabavne Glazbe Split '88 - Veče Zabavnih Melodija
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 0x72d81ee4e70f66fa589f97c88b7d09a3339ad63fd882f1f84d1d9ca3715f3f9c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HRA040858388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c883aa02383ba05abc67b85c37aae90633c32713c4be969d9743091f289d279. 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/HRA040516746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0025b1a9887621ddfd3e39eede280ef52bf3b6e2815d025e941ffb3caf344c48. 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/HRA041266510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053b3a804325eeab4034b5edc605deffb6a2c02b1ced1b9a7bdadc783642da82. 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/HRA040640151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36586746709903ea43596fda7baf44cb3019ccc1f1bb6317a1c1572d2c56b512. 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/HRA040530383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14eca658ff3fdf14d650c5b1c5fa62317452a72fce5714cf413433f99a849bb0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HRA047346254.
100 Originalnih Pjesama - Splitski Festival - Ništa Kontra Splita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e00219f8fb57610ce5ac71543f0abc3dc1e7879f86d969af6afff95f2e7f37. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HRA232200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb19eb02c1f5f32a487fe62ded4a793911e97f87d43c50737ae246551e2957f9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HRA040544051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38451468fd07c21701b330d252ea706dc882f1e32066685b00b54b4b250f8331. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HRA048232956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d17a276552aa861af965d2b97096b59b90ebfe7f9c59ab9f1b1bbb4cdcf28a2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HRA040645909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97705dc3716094d1a5bd33ad8d8a8fc4edd30214886a1d8bdd54e13e45269a73. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HRA040532959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfada98b50d05d01bfb159ac727d4cb5e96eb4492b54c6c4d90f48dc4c8df6391. 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/HRA049022647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c89403f68793ce0908a845a8c992f333f3cc11efb36a2a2e74bda6e9a0689f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HRA049430490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38b03bee885dc12c15f9d0688d31b3a446c4e77f1aa5d293ad42ec6ec7ffbea. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/HRA040616738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1da7495cd9541f2169b0ecf1bda6f20d91d2203465648413b9e907d9e9fd86. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HRA040645913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e5746af6217740fe050320b9d5bdefa3a5afb5cd54b92ade24cb78208ddd68. 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/HRA040645914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255dec3a795b2248b826ca720ee4b00b8c42e5e41f5cbfde649e5aa6d4a43627. 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/HRA040645924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3ad0a1e32d88f1ca87f918a77024ca9f7513808d84df0449726483543b77a0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HRA040645915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e81c6d43286dd2adaf002a336ba0f57b3c62aa61ca6359579e774b582fbfc5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HRA040642867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b92ef0e54e5745f026e34c39235e152772c98280f2bddf489c94a40ecb61fa2. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/HRA040622801.
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 0x1d8a51e527edbf072280ea9cef1b0761f4790e615a456da3fcef54499c45cc2b. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/HRA040635644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e27409356b0f8db89b0a57e952e0da328aa3d063cf9ba0b2ae4bcd7bd46e4a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/HRA040645910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ceb6c8a1d199ca872180d2cce023dde05cd030ffc33af388ab6793aab51486. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/HRA040645911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1ae0bb8ce0184e2f774a1e3e8be018f85afcfb42f54587264262f31105aeca. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/HRA040630507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46fe61e21ec878e56f6910a96714ae3a1874570c492cbc07a3b65ac549aa781. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/HRA040645912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe547c2c8b2762b8d173fdcc626ca71420cb3a67be7ac9eb2feeddcb46dd32452. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/HRA040621045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b335f2944869ee751219bf4ce5b7627e568954f50a1797a81385d5e9670c8a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HRA380102176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22555ccb82720cc68b1914a59dafe24d560716ef90a095a9dcaf8de72c366db2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HRA380102180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b2db8a95fecd7610e9d346c92b656efa454ad16e6ab4fe9f81cd03c09d69ad. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HRA380102182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5deaf964f28a05e9d85ac981f6fdad58ddcd2249dadfbf8501d69d5c3e57805f. 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/HRA381500934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82138bb7559fa291b9965239091d3cab17d739b17bb70418391b57d3711dcc7b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HRA380102183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cfe5dd1ddcf829341630e19bf755b9c65b0079cbc929040fdaec5091b98d58. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/HRA380102175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccca9dcfdddf8b2047df396cbd32384e9a1c1c353e7ea73e73ecac51e5e3a9e5. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/HRA380102178.
100 Pjesama Zdenka Runjića U Izvedbi Olivera
40 Velikih Hitova: Ljubav Postoji Zbog Nas - Najljepši Dueti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dc29a5c1bd15fd6124ee7db5a11d74378bd1a0608325964ddb1f612e41d33d. 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/HRA040645916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a81adfb37ae7e17316d3f40bdf21b7e536f8ac9423d8e2eba956fa6484a89b9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HRA041062498.