1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x273a4c6cf8cab0b53e2cb1be66aebbc8c4a4606dd5f29179bd8db602242ea954. 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/0cb5cac8-82f0-4504-b429-7b431f7d4687.json and https://artists.proofprofile.net/proofs/artist/0cb5cac8-82f0-4504-b429-7b431f7d4687.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 → block OTSBitcoinBlock must exist at that height 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 0xedca5e5ccb380fef67e816e58a3d0a1d9422f41e118da1357b0ebab7923b2ad4. 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/BRUM71802937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172df9f3c3bcea927080d2f342a047fec1be101dbbddfae20414ded4e6f8d34a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BREMI7900096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb636cef58da7fe067e351a0953262376363aa9860b3e178b4c7aae4309019788. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/BRUM71802760.
Flamengo Maravilhoso / Música Instrumental: Cidade Maravilhosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64ca19ae495c399595311d90d54419185452e754788100e5df778be07aab120. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:25:45Z), 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/BRUM71802961.
Quem Não Tem Esperança Não Tem Horizonte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6e0e78dbdc0440e6ba83b95022a3688b12575b91c3f879f2002f15a40cceb4. 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/BRMVP0304142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c5f2ce44a0311e5740b9015cc4d770aab4e53a025f122bb3e794e3c1aeda43. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRMVP0304143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1236424140f43247b1fe56ceb76d1fd70d48edb6003203f03ac76c6d3e80570. 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/BRAPI0301957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f2e97207a88cb802229fc2854c8e732a9db9d2b2b1869569460247c64cbd05. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BREMI7300167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7812b48eee3af6e196ac704eaa055ad5d60603e92c26f643597a83efc1b00670. 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/BREMI8100313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a1c8124dbc6101f0cf94e310fc706f1e62af2c51406c1fde351003249bc738. 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/BRGRV0301270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2068e18ca02fad400a607f12069e10ef8978bfbb3f0d26ca19c8aa34c19b74a7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:32:13Z), 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/BRGRV0301272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3425df0e7e3660298adc7587f8061473e0e5493b428ede518cc3bf6be4a1a0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRGRV0301273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a6d856f4fb18eeb9a561eace70f77331830d35c81747dfb3e4a3774199c145. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BRGRV0301274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9f3366eb9745daea9f7354d3aebbb4b68e3e6fd9536c22e12d933adea37579. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:19:42Z), 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/BRLGK1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f2b82c6cbca25a49d8b640f88dbae2ff2bf22c7cca8ca6b36798d9f5548a24. 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/BXYOC1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e2e8833b94412f5ad2b997bfcfa28ee149cba2c84bbc024d5090e813f46da4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BXYOC1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d16f062d243f4c38f8ed3ed54f7088fe9ce9867570ccc9256f961b14f844f0. 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/BXYOC1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7a734e43bdc6f3ab4095b9ac47117eaa2e98f5aa0175d408b89c94c8e5a8d4. 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/BXYOC1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f2b82c6cbca25a49d8b640f88dbae2ff2bf22c7cca8ca6b36798d9f5548a24. 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/BXYOC1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ea41961743113f0f3db3c73646c9235ec25d7d12d4f251aa26b2c78ddd5a77. 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/QZWDW2589564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bc49e2f7b6db4bf9534e9a4dbc41f91ebcd40b2ca7e6aadec7a7a394eb0086. 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/QZWDW2589565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3be031212ee81203283f0bf2ba68e0bb8c65c26a38dedd3b70a5ac79e57ad68. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWDW2589567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e62753af727defe127eca5d7c506eb23ac39c1411aa6dcf36a4ef6746108ef. 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/BRECI0900210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cac2f03137f7ad2e3e6dcea129e948a53ccae6c75dbbd2dcaaf87a69edda17. 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/FR96X1916679.