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 0xc222ebe9bf3919d27c28bf3e23664c510c1d0e8e3ff552cf32f111737eecb75b. 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/8beb5e46-e5e5-40a7-80e2-691491bc4063.json and https://artists.proofprofile.net/proofs/artist/8beb5e46-e5e5-40a7-80e2-691491bc4063.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 0x8ad3c6e862db1018793a7e2b1266c71e1e54b4f0c87d914871f0dfe171e26529. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/USHM81300449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bee3eba9b6fa99f4b6255b03dba106c28347e20014c65b7fbd526e9a13b7d4. 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/USHM81300454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdff908f4bc7982afabc4a4e821b7d1ba97ace84488e12b525079d748b5740fa. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USHM81300444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df92e79b679ac999392ac9b5581ceabe4e7d8c691a0d8e0e7d06d0ece79f9ec. 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/USHM81300450.
Bom Vibe (feat. Kady; Dj Djeff & Mc Bife)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49dc277634bd90e4866690b26ae7c07d9b52dce79a00d86ac47a141daa94eb76. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM81300453.
Bom Vibe (feat. Kady, Djeff Afrozila & MC Bife) [Djeff Afrozila Vision]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf17271a6b99ca8e8901fa0bc8fdc95f26042a18ecbd2a70194bca574c8663f2. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USHM91848777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5277f40429bed08fcd5f348e9efc54eabf686a849a15426da14b043ba8c9645f. 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/PT7HS1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9372bf32b903fab4b187294a28e81608282e7bcbbdb92aa95613ee624d89ad55. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/PT7HS1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298841265db271f4604c972f5b3cbae37d6f7aa32c8223b260221a035278af4e. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/PT7HS1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53a982842447028ea0434f0ce429c1ea3f7044e8104ce808539a1a7485d2925. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/PT7HS1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dd247be8b02e006f331d9ee861526d5563af5491e08d7fad939c147f8fc5b6. 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/PT7HS1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2ff6b0c2e94e9053ce72fff4e1d316cfb19809d88bffa1d7484fa09152e9a8. 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/PT7HS1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36239b38ed16cdf0882f8e1c366ca9f9e1c6145c426b68a11d642edf8d30bd76. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/PT7HS1900018.
So Ses Boca (feat. Mito Kaskas, Loreta & Elji Beatzkilla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5828bdab5846bd36fbbe8f6191e2533ceac30f48161a4d0f0ef8566fad8cc9b2. 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/PT7HS1900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a446a83e8bbdf1136c8ab19bea27f94bef9779e074df9f30d72ac256c069d5. 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/PT7HS1900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543de21d5c76eb25531dcb6f1005c49402d63dec17654ddbc48c9406cc6d6de1. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/PT7HS1900100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e778996e9b3ba535106bf2b59b76581425afe8ce94f3327078828575797294a. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:08:45Z), 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/PT7HS1900072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464041ec1e7046984a43abbfc1ccfd2bc73b55e45a33d13680989aaa042e3bb1. 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/PT7HS1900098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc479ea2e5703d93f433799cae778862ea407246acd3d864cfbc59a2a06417f71. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/PT7HS1900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bba076144d96478f4d4bf489ae8a642297ef4ceb5821674ae2a2a0d6b7c7ed0. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/PT7HS1900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0561f37d3aeb49261bd5558ddd0ed1a60ee2afbbe7f4b9283ab0fd0bf6bb92. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/PT7HS1900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782837686928dc150be78aa0f59fcd24ac1c66a432756121e68ed76ae28f4b48. 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/PT7HS1900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63919d9c0665676cd71ad2fb83c4310c2b50dfb6e0ecd8dfb8a173b9623db531. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/PT7HS2300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a3c633336b722651b738196ae0e653f3c53a4a190e7ac3b7a6ba2b3d027596. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PT7HS2300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2750dcec6c3502004ac86af1a4d4f017727044ca258033d7d200de3640fe735e. 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/USUYG1413093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d025405a5db50a19e591764992a890e7bfe77ff882a86f121f77afcf2941904. 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/USV351497449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1c4fe227833c8723db6dfe83c382db1046eca8127fe85460c14ba20ff7db00. 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/USV351497451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d81cbf23beb2e7ba913bf1533571ebbb5ec2f18bb79347b6ad8fcfad3149683. 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/FR6V81466596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0340b60d10e0eaec06814d0996b20ebbf2528d2cfbd1dffed9c78ec26bbb5e37. 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/FR6V80233216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8827d516e5d0329e4c935d2d5cc2e4bb719c25348b6605271bc686b997ec12a. 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/FR59R1625287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff1ad17a250de5f5ca6ea57e4fe32cb1df57c385d8637c45f8477ba9ccdfeb8. 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/USV351344740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e052dfe83642158ec4e631645a63ac96be51bb2725c84b0152cb1147c3e5cb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PTBM12000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6793d376739642686488ab7169961a121b258a25896920e930086b4b33ec468c. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/FR6V80120711.
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 0x8eeb16b6e4c3eff8aa26531ac985d5123c15acddffd33656f9815bd40e210aed. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR6V81426256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4ba62ec322f247d6919da24c80d91fb6bc696de361656a40ff6f61937a058a. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/US6R21427837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3723d55ec7cd232b9b1b460b5c7e5579088d3cf89f57eccc252b04f442aa2b1a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZTAU2110405.