tb1 () is a Bosnian commercial television channel based in Trebinje, Bosnia and Herzegovina. The program is mainly produced in Serbian. The television station was established in 2016. See also O K
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 0xc468fd6542c66dc0c50a5bf235d3bf0c91d71c33bdbcb7b2dd92f3b7e43f733f. 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/f5056675-04a6-4208-9297-5132e4ec78a0.json and https://artists.proofprofile.net/proofs/artist/f5056675-04a6-4208-9297-5132e4ec78a0.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 0x39de13d0b2c2c5ae420cdc45e275fa2493678bb0d8c7671b2a49a110d604f27c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE6QE2224052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6144da7e7daff3556387d8fa8b5c932238a10fe3809cb7b2097520d6dac865. 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/QZNWX2180944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368db7adb6fdf1226211d5cab0fb3cf311b2bf3c3aa47ddc435af8c2cf42b499. 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/QZNWX2180945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fdd9e10b43091e67b3b3222e139d5449f4bfb88919069685ccb8fa9c67e2e3. 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/TCACG1556620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63213c642e820d8c0d9e2ccb99f0936a40cc225929011afa1559d3e88f38672b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCACG1556621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23d579ce2d8f4819c355d2d65645d44a5fa48e4bfc74b242c6b269599459a54. 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/TCACG1556624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bee0517637cbf7a042a6ad1a88ca297dffde979d938ae80e8cd1441da08d9b. 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/TCACG1556629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3bf3e58087106e1e4cabbc4c0175b67ee76931c0db31ce3d22af248241e60d. 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/USLZJ1779061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67436ddbf0d7ee4ae90ee4c03ab6c2377035fd7cb016471b5fc292fa540c70f. 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/SE5BU2576709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39406ba595566cc20bde05201bdc74f2557944049954482b79091c8627b60c9. 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/SE6TI2322039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bbe926fdbe4c45837af7f4a4e4563f1f290f6b272a21d085a690f727ea7d43. 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/QZ5FN2128368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a5a994b3f10669ae2a5b64f0030d5ce1fd334cc179767659eafdc8ed88a391. 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/USLZJ1920729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d952ddf82be1e51c2fd3bdad3bd811615b82fb375fb6b9a45d797d9d439fad7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZ5FN1954744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618723486a287d9624a99226693595b588689aa3bc25de9714f30afabf5d2140. 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/USLZJ1858821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae2d18a813672068644199d76b10840602bfa550fa9ec591bda2b55944627c9. 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/NGA601900488.