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 0x7d5dd1a33415fcebba7981150a2ca9a64e508a1db6a142a47b76039f1f398620. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70b665a5-3f8a-4279-9446-c4e2462ae9a2.json and https://artists.proofprofile.net/proofs/artist/70b665a5-3f8a-4279-9446-c4e2462ae9a2.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 0xc8904ab411344c056ea04130e3a9beda1fe58cf33903f5d9e39604b566c1cd70. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/HRA041685549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad3df801862f3acad63fca051276fd4faffdf9bb3dfd4700e0d52366f5608a9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/HRB901400929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a2bcf560847aa88b3b6c4b03eb72b774eeabba320a298e0fec1f7fde23c24d. 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/HRB901400931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fa94b85a42e6b30713c67c6dff50ea74f5f49d292bfa2d2f9d567db64b7ab0. 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/HRB901400933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59b88b21357751ad2213c496d5fc388e004ff0c6a99766b7cbada1dac9dd968. 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/HRB901400914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694830dbffda56e99e51042ffeffc64a18f7912f1c08b2b21aac17d0fbf0356a. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/HRB901400948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf859edc73fb4f3e1b14ae4ee38ccf358d19d28156838e36b2a7ee5485f78a223. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/HRA041372232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a296db7b4ee0231d48b72457b83de4c8f019c6a380f74be56e1554babbda65. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/HRA041370841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1023cdf3f79effd54414e85463edfb793f6c81e211d4b43016305acae16100d. 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/HRA041370824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6522a0eb193c15bdedc66bb5eed864594cbbede7a671407c18676429bcead6c1. 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/HRA041370843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21192e1f3581b890e8afff77e4d6ebc52f1142539b22156941d8a4fa02879e09. 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/HRA041370845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bdb1715f625139014cb039237a3d9cd2fe1a1f14a2bf21daadbd192dab80a7. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/HRA041370830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac05c37f750385f9ae17e4404dd40363e68f23cc09772ceaa1945bc504ac1bc4. 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/HRB901705378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5d243c72d6bc89b693680c00c415c8fea240966ef65663f1f4714b105e5423. 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/HRA231700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d52658428061cc390fe99577e9196410709456678b7621a0f3e8a03e0c3937. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/HRA041787546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb182e296b53306652ad6010918487a9cf11d45ba5dcc03d83fd93110d4eb8c16. 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/HRA041581201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26356ae1a176b54628796c2bde46821eeaac9fdf0e1fd7a2d9e86ce1a8eebb9. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/HRA041581202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6973cda993099762bf93f53fe44855de672192bc75ce0448c22e53f470ad002f. 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/HRA041582885.
Tamburaški Memorijal Hrvoja Majića - 15 Godina (2000. - 2014.) Uživo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a9192e90ab0d040e4931f6762764ff7fd2bf5a4f22a7a6dc7e635cf4bbdd17. 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/HRA041581766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0138378941db3ea905234b01c15f7168b76271c5f891c7a006eb8bfed10724. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/HRA041581780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33af0a3464d31a26de5e0787ef05e636e5b6244483d0e57423a995bc4191aaf. 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/HRA041581800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595a44d4b8e0bf7cec77a75563a7f73c972080a5dfb64aa1249fe1098442fc68. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/HRA041581801.
Tu Su Moji Dobri Ljudi, Tu Su Moje Uspomene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373b28b9324a4d13f7589672bd49026d4f5485e8b5d4f3134a47b8a8b4b6384b. 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/HRA041371579.
Šokačke pisme (18. glazbeni festival, Županja 2023.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707f2eb3c62f9833a4fea82729fa6bc7c2bdeb410c06099e835b6b98fe18ee14. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/HRA642300498.
Koncert "Antologija Hrvatske Komorne Tamburaške Glazbe"