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 0x3a481a9da0e3e975cc2514512c049b237da761ff66d2401bd61de9397b04891c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abc1b860-3f18-480e-a618-6538eeb5f511.json and https://artists.proofprofile.net/proofs/artist/abc1b860-3f18-480e-a618-6538eeb5f511.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 0xb21f14158206c7a3d003fe11ee5d431cb8ce4a7fc75890492f0e2d9a6c5900f7. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/BXIV82444411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bb205a340415f98881f4f2a94447a9777fbaad7a5e99e5f65726a373882dda. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BXIV82439623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551e8becdafc91843644508d9bb427fcbb8a05defcde1911d50739e23dd9af64. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXIV82445345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0b4dfdc23a976c56592a93642f5338bfec140695c8a3519846e01f44440983. 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/BXIV82262383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368c69d5b825d9b21a6da193cfbb5a9273393c276e8e75e9f3925eee20dd57a7. 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/BXIV82206360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa197e6cc8f60c0bb35562ce9899d64fb47979e5c956583bb3331f59617454b13. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXIV82239193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04171865794a2d00a5cef7cf869275cc3c4cb1007046b15fa65d7f5403c97b5d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXIV82247764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f286c2e615b6df5ff39f08bd9a61b106e921e58d65dda407aff89818249718d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXIV82215087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44371b8f4402eb30cc46d54175f3d1ad8e1ca7a23aa3f91481d3e4bb32adef19. 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/QZS662168227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb22e6773e5dabeaf638af6951f33fcf48d3b581154009bc946ea4214ba5fc22. 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/QZS662161980.
MTG CONEXÃO DOS FAIXA IPATINGA E CARATINGA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6261f3dc2d1041141ac10fcaa94500778469a594e19e8942e878b384ac1726. 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/QZS642108976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc780e6813862b66933ae9184e70434d2a10b802ff4d362d7216b8944d5598531. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZS632107808.
MTG 7 MINUTINHO DE PURA BRABA PROS CRIA DO BETHANIA E DA GM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8060cbf600bc4c0ca05cd27d129a7c5528cfea64f2f57d01fd44da9fb808f44. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZS642126961.
MTG QUE COMECE A NOITE ESCURECEU O CÉU FININHA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc3e0caf1d3389ece88f615aaccdd48f5509b04de0e830239b7a62689f5a07c. 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/QZS642182277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9dbea414f287ad2ba7203802ba07c119384731889628171dc4dfda13af4910. 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/QZS642100409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474188c14814d55a698cff7b9e68179aeaa9bc0c353a2448d66a241b0d30ea8c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US3DF2137046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28382911cd2f9cb5a38a78fda82caebf1c78c8aaa2ffbced735a40c056198eaa. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USANG2185336.