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 0xf26167f1d3d0b7e2f65875c8d7c4232f7f0c4f83eeb2581e1e37ca70272de9f5. 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/9e1376f5-275c-47f3-b732-b59f8de799b6.json and https://artists.proofprofile.net/proofs/artist/9e1376f5-275c-47f3-b732-b59f8de799b6.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 0x3f1cca6d036c9c136c7efb8f8e6c634b1e824ef6535b9494f4382a54cb3c9eb8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/RSA221813207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb89b6bec9e8bcf56d668e902384f3ca5cf337160b74ffcd533baa16b8a2c521. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:08:38Z), 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/RSA221813211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ac073a34c7427f2400c24d59faf747bdbdb7f0ddbb6974dfa299201e102f2d. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:45:00Z), 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/HRA231100124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f37514d7808594b899b24842d7122bf82d55c184316370b6c69a6e336c908b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/HRA040631614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8197e5b43c99819885946589c154a23339271ba60744cbdec6c87e876f229ad0. 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/HRA040629269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b7404d3d3fb762a689a7f57ec9cdc0c81e402ac5a47b74ab5142e24647484e. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:04:48Z), 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/HRA040640695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c13f38f712c70e857225ed6d4837ccde232efc5aa48f0be387bb6aa5839a8f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/HRA040636733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1402b68fb7d5f166081cdb128f7ae7109e69216419aeda0da8e3257dff4a41b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/HRA040629163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234dd11a4301334f5faee456f7f8132eeebb989ea5f268f82a73501f125a4e77. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:01:29Z), 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/HRA040631620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b5b6e82876a75ae45cff295b73f414fb27b09f6c47abaa513e8d8a36118592. 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/HRA040630384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcae971cbbf46ab936e429375c276640b66905b8b4474863384ff72d3987d12. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/HRA040629270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3eb77d9e173aea8d6fb073d8ae99acc82769d96b08f7f1a7ec92d30ad1724a1. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:52:01Z), 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/HRA040636726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c21cba419cbc3f940fe7e78dc076ed4f4c6f1e6efc66cceb33a405bf3beaf8. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/HRA040636728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff29fca8743b41febb24d5560b1a9b61f24bedbe9e9158601e4dad02954e1d2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/HRA040641996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda5cf8e52e2de5530e8bcaa520564052eed4050da2a155a58f9e7fadb5ea137. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/HRA040645257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef2be2912b64e37f433534fd6473d114fac97a3ce0e9f31f6bae90068b648f9. 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/HRA040636254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d639fa5d2c4259e5163fae85ff5f3ad35e7c1658485f346bade5ef6b45c1390. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HRA040631618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a199345baad111a0223fd6281a28cbb6d8f8e9b00cc8dc7f22de09dc22d50a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HRA040645266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe201c5abbbe7dcb987f6348f4fac4cf4e7cac8c3b8f5ec160ad590a01d09ea02. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:48:12Z), 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/HRA040628872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd32cf07de468557ccd10c80b28551580d1d3ffde08a9a5f61489ac1a6bcd11. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/HRA040641995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5e91070ee68c8311b97b46c1b5302ffaef127785c7a20ab590bd87cb1ee6a9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/HRA040641993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c3862fae4cb58f489e047d3d203c6411c1b35cc6b9384884390d609f5ebef9. 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/HRA049531616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928876a2da868f15a5d0aceb5c70e3d7b707c2dde40d257399e506431b6d363e. 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/HRA049531613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a42716ef9a3c6eb0015a985ab087e3382a2d3eb5e90c9b35915be0558c0f18e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:42:55Z), 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/HRA049329271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8783f15c3c8d89ded52f715cefd86c5af6b5e318b8788af3d0e05470b3d1b1e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/HRA042392150.
40 Velikih Hitova: Ljubav Postoji Zbog Nas - Najljepši Dueti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9306327cf10cf0840501209ad546296d557c80b09dba605d285afe545c97eda. 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/HRA049363082.