Zoran Predin (born 16 June 1958) is a Slovenian singer-songwriter from Maribor. In the 1980s, he was the front man of the new wave rock band Lačni Franz. He also writes music for film, television, and
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 0xea969b188a38759d983f6c7136ad161ab45a857241e59629527f4eaab02b3743. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6b1063f-e93e-4a2d-8ead-0ce9744cfb43.json and https://artists.proofprofile.net/proofs/artist/d6b1063f-e93e-4a2d-8ead-0ce9744cfb43.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 0xcc8cd798766953b4ad688659f15ff30a530ad6988bd7929864fb0f24234522f7. 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/SIA420700112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5434fb9fd93d1de71ed1feb38e113ede894cda9ec024be3687ef8d31bb208f. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:08:16Z), 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/SIA420600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4c0e5cad9dbfaf2007d6b8a861e85f7a131c1a92dba5ed694b3b27955e2ec8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SIA420600157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6856488e8cadb337f20e9d5fc4b11116bfbd67453073c0efa6d5f7a4816686. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/SIA420600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc9602764eb146f2f4b2bd48972780392000de5114cd36f299784b5b7982b75. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/SIA420600016.
Žarnica Za Boljši Jutri (Live in Žive Legende)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a17c171a4a44c48393e762886749a4bed5965e30ca7a27a53bbe2dbd5b1c9ee. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/SIA420700076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2fa99b5cc983bf1b95983e06723b54f028e738cd706dd97285cf2d4a15a6f1. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/SIA420800143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6941ad2501ba262212e98f656764a726d2149856b50e5c93b6fb1707a8d3ae6d. 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/SIA420900832.
Lovec Na Sanje (feat. Orkester Adijo Pamet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb439439333c59673538630af03d0eaceb6d45d1760f2242bdde96692f24618a1. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/SIA420700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fcb8c06f47800efbfb7bc99d9960b651740a41abdb31627c4223e0065df52a. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/SIA420600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b053775222b1a1a06c641f02cb8ee52bdbbeeb6b86f89205f4430cae1ea3d43. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/HRA041684235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41cf15940d719108122fa2fad9f016a61fc1646086704249ba861127640d125. 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/HRAA41700281.
Ostat Će Mlad (Sjećanje Na Krešu Blaževića) (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cc2454813aa4f26274475f3464c71fb1219ddf5292b1571f217b7644fc90b1. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/HRA370701063.
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 0x314a209d469215ae9c79f4521a009015aa0d42dd874f00955274e0d76d3e3e7f. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/HRAA41700269.