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 0x450f21f024db4fdcdaf88c29717cafb209b34795278e284f96fdd3dcff2c9e98. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd46190f-34d2-4e69-916a-eaaf0c91c119.json and https://artists.proofprofile.net/proofs/artist/fd46190f-34d2-4e69-916a-eaaf0c91c119.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mestre e Curandeiro Padrinho Juraci da Jurema
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 0x5c1dadcd7058ec6a158e81de08c65e7c96cb10d448ef5509eeea5092cf7512e5. 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/QZNJV2313671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20557810127505f05b06fe686d9dd3be1fcca528da1a6217d9142998b66109a3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BR1C12400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa243e7ed4041882a6601cc2741630c6695ece959bf925faa6c002c56f2e9a1dd. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:04:44Z), 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/BR1C12400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf22da0019581ef5e005fded17a2d51bb3cc5ae593057e60038635e5db2a2675. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:04:17Z), 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/BR1C12400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f03e50b2f9c4119d180774590c878e94e6e5b866964585498645fa1b8134d88. 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/BR1C12400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e737236fb93ed24b769b5d1349d80b7866fd85a44ffff05e6af173ce7815d0. 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/BR1C12400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2319a94d0438c391a757195a7fb283df0d670f05fee66c6dddbd4f8dc0e252. 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/USHM22434950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271c711df618770ef02f82169bb786d96de7934e9d343578600fe6148d0dde49. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BKMCY2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3e036a773b3bc3e1770a6bd21317f91002e7c12df89a3c49e5c975e9777575. 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/BKMCY2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e748a111a89090e9f77d45d2177834a66b5b48010efa7daa620dbba94132a5. 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/BKMCY2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61dbccf67e6e6d9f29a8804cf3b896821c0d19268ebf245b89ae2d72127c9422. 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/BKMCY2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb902865ecd255a0ab9668c9608c234790e43079633e5ae498514819f51472ed8. 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/BKMCY2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be6f8b8f77514fa2007c447912f7e32da01f22bdbcd24c99a0a93f3ffcd6c61. 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/BKMCY2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3b0d06222f0ebf95c224b2429923b55d50373781fb465104288f6bb3638ef3. 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/BKMCY2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e29353ced5ee3b63e8485951a5bfc2c2e684b2c44c6ec9e128efde2eebc9c5. 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/BKMCY2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ea0abfbe77dfa1ae8372afaf496d9a2d3687ae439dfe55adcf0c0d6e527aa1. 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/BKMCY2400018.