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 0xa6f4baecf7c3782708719b9e94cc23196fc8772e65e73e26beae10c2948f0e69. 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/c68018e1-be50-4f2d-9208-e451a7c1f1eb.json and https://artists.proofprofile.net/proofs/artist/c68018e1-be50-4f2d-9208-e451a7c1f1eb.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 0x76fa500dfd60ce44d08449d63f54c6cad45e00f792a136cae28e527a45e9c524. 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/BRSJL1400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43f372ed85ebbf6eea20fb556802aa6b94186ff6f801a7ec0976b3342bf0b7a. 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/BRSJL1400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45224dac8507316f19392c1c9ccbddd97d7fd4b3d3b65da29f0cfd26b5571b3. 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/BRSJL1400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33f423de1ac77a601e28b6a5433382e877d3baf242f691bb74a7cd246629902. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRSJL1400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741b0fafd14cf6be4ec5452eb6dd76c076c62fac982b4da06441cfb9d058c68e. 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/BRSJL1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72c796cf0a86eb55757b8ce0085295700fc8aa8fc36877f43c83ad203cfbeff. 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/BRSJL1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366343edf885b06e4f495949bbca2fdb10d64d20f8b01c40fca1f87f04f9f22e. 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/BRSJL1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675fa89c2fa2ca000ae18e467c673c6ddbd7365cb78e1b204fa25e3b7db41f91. 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/BRSJL1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ad9eaacf28da6f414c91c8586b58456790eee33c8bd3ee0f5e77e8a6b0ed88. 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/BRUM71100234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4dccdc8f845fa550ad12dc1609357e1b25cc95c21b8d5e1954cff57815e157. 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/BRMCA8500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753decb0f84bc4d985abdd24db9643508f52eff8d0c9387ab3029316a835444e. 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/BRUM71800520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e3f22014d7ffc1b2f66508157b5fe41e627fdd9a2a26848a49ea91defcbe1a. 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/BRMCA8800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bde359c9db56e7172c66789766d326bfe5a1223b21d1dff2d45d1831e7380ef. 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/BRMCA8800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e3f22014d7ffc1b2f66508157b5fe41e627fdd9a2a26848a49ea91defcbe1a. 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/BRMCA8800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bde359c9db56e7172c66789766d326bfe5a1223b21d1dff2d45d1831e7380ef. 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/BRMCA8800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4dccdc8f845fa550ad12dc1609357e1b25cc95c21b8d5e1954cff57815e157. 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/BRMCA8500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ad9eaacf28da6f414c91c8586b58456790eee33c8bd3ee0f5e77e8a6b0ed88. 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/BRUM71100234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753decb0f84bc4d985abdd24db9643508f52eff8d0c9387ab3029316a835444e. 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/BRUM71800520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf862570dda3299dad7cadd7fdf1eef9c84105ffd23b0553f4d0a58ef3983da87. 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/BRUM71800526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e01afc7673c1b80fa2d8fbaa0de036bd6789bf38d26ce49a0ff72a423b762dd. 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/BRMCA8300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3e7a4947199e0bbfc19d450b65ed0bb518382eac9164b3b8bbc7c3e038c73b. 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/BRUM71800517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731fad68fea0bb8415f710c207b63449df0fa782cbcd6300c3def1c2c263fab3. 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/BRUM71800507.
Nelson Faria Convida Tunai: Um Café Lá Em Casa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ca7b419502b241f1db41053bbfb784218c1aef8e6e35dd120e336656c1b4c4. 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/BX3S91900196.