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 0xb7cd1498b51c26dc686863ac175c1e2654c42ceaafb940da2f779d07ea217067. 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/4b5fcb5d-fc0a-4d7f-94d2-abe7b7b662db.json and https://artists.proofprofile.net/proofs/artist/4b5fcb5d-fc0a-4d7f-94d2-abe7b7b662db.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 0xb3d2f8f09baa7c980068e618a867b28f0f9d94b47da64afc1c76bfc0891442af. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:28:07Z), 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/HRA231700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d97846ebaac9d41cd4ff17b585030b29eed2426472bbc93df26813c804122f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/HRA231600073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979a3e0e40a1ccf1c30dbfd82e20fc348830f0232e31340ec17fa07f82207087. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/HRA231700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77a6ffa580532a3fd5eb4cde9b6ed63acef1782cb795e57b729fef3f6c30885. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/HRAA41800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cae5b9f237db7596a68f1fdc7c167cb62c3ad8323f873be6688f999a79adfcc. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/HRAA41800062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0596d3f38e19b9fabbc6c09d82e724044c0de3ef58a7882e31112b55ebd5500f. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/HRAA41700646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d14539a154d39b575cbf3cf1d1e8c77c84802b0a0fbdb11288c0912ed49b824. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/HRAA41800065.
Kako Nam Stvari Stoje (Dus Future Pop Remix)
Kako nam stvari stoje tour (Live at Velika Gorica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2006e3569875579d50731c125bef5e15146a0d8dbbeaa143509c9c2ab1c20e94. 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/HRA6L2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1540bbf851da90f8283bc3a6ccafbdc4417d3c36810b25521714e14ccbd4368. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/HRA6L2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c8f1dbcd2fb08857477210bf9e6b719479c3b1ccc56e305afb0255bfa028d4. 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/USCPK1900392.