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 0x4a6377adb0246ec6d4a39a04a3bd82e76d4123f6c46afdc787fa4385fcfa443c. 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/edaed4d1-2ed4-410f-ac60-ea6c1eca9d92.json and https://artists.proofprofile.net/proofs/artist/edaed4d1-2ed4-410f-ac60-ea6c1eca9d92.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 0xbd80ee8b6fafda2134584c5d74a66afd6016e0819b23fa31babe9c7de0531a8f. 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/PLA552301023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50bd3663ac5d9616de51c3d941134c7c7098b78dbe3c44cbdabae8f1743526b. 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/PLA552401160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c91ced6ac9e3cf282587e7c4a7cc1c2c878086eb03c0911fd08cd75e3629bb. 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/PLA552400645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed919733593a4ad6f863490cf20d606ce293c0b03f5e4c968290dd3b7d9a5d16. 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/PLA552400467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2043c650acf3c631ec90eec174be1997eb6ddf04893a0c17e54895dd0527ede2. 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/PLA552400265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a66d3007766f70e54067de55f9c496b65be5412eefd41157e9f9585be4c0591. 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/PLA552300899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83710eb7d5f17788f77fb7aec852bfd2eae7e63362f11c2b578962c4387be23. 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/PLA552300617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce916156409067ab719e3498d71c13e9419b09ffd15441afec8f481af8757a7. 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/PLA552300329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6a2d741ce4bbd10a1c8b5ea2a6c5d919a01b50c50903beb26cb76a80508203. 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/PLA552200763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd25a96819e490608f918b6b004cea70f8f4b3d7d60b01e6f289a51813d14129. 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/RSA132203401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c26fc2dc24d9a70a24a6229b279160c592aab0e4d5dfbe9635bf7ed19b8635f. 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/RSA132201701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3feb7461fea28f3c640f2e7d8579125c6789fad87b1371021bd58c9c9f62f7. 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/ATAJ12100733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058ec32f43516c8489c160976f144c93944e9e0bf7d802639afb084471ec0d80. 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/RSA222091034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65238fbcd82fd2bc5128b9f152665646c0c9c749261f5cfd13d97ea43a5cd12b. 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/RSA222100432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26aeea5c1b96c730cd42926564592ef229095f797a71e33556f9793119366fa1. 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/RSA181342169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8447ae27260e50f5a440051fbf99f0867d25a43209d172f046e026888ecf7508. 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/QZN882131634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91dce1c43c20aafbf20af8083a0dae2818980549f799d4fd08902d5e85595883. 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/RSA222100288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5aed68a1205e6ebeca2e0147f68b6a963aa5e737650cbb71f088e8606ed2aea. 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/QZHN82037402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7cd12e4e6e064ca9f43b02c136214fed2d9ba4170c8c6e75434a9dad0e1592. 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/RSA222010302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e8581691e29fdebbc9c568fe29b5eadfad09e8d8321356452df908e9f976e9. 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/QZ93L2002637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fd9aa0994cd53ad4dacbfbaebf2d19ce642e69a3248e39c0eabec23a1a3864. 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/ATAJ12200756.
Najljepše pjesme Đurđevdanskog festivala No. 1 2001-2021