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 0x6394cd24692f694086ca8dbc577ed378fb5fa27d148eb92389d1fccbfedf3a80. 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/20571dcf-af75-4dc1-8c9f-d814ef52fcb2.json and https://artists.proofprofile.net/proofs/artist/20571dcf-af75-4dc1-8c9f-d814ef52fcb2.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 0xf1a16485911f74dd1b64f86b8f2bf69c504abc145f90f848d74f961cc168f8b5. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/BX1441800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9a4bfaa570d1cc4fdf3e29b10d014b13bfc4ee061fb61ae7f1d0ebe9ef0ed0. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:25:35Z), 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/BX1441800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6ab4ba1a39f78c5695d9010bcb9c8be1b04b15930134bf50f747061926b67e. 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/BX1441800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3ee7c268b98d5db0b085756356765a99f59ea389c49d09a98ce2c5e9e4f63b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BX1441800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb425aeb2fe8bc702e0403324d7baaffa345a80a65e90c00c86e0b07f4a60a1. 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/BX1441800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae84a9045a11627ceb93169571e460c511cc74af7803f58764ec54e2119b0911. 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/BX1441800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6ab4ba1a39f78c5695d9010bcb9c8be1b04b15930134bf50f747061926b67e. 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/BX1441800001.
Nossa Vida (Ao Vivo no Estúdio MangoLab)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad15b65ed6a40eaffff08f6bff04c3f4134620c3c16c4057dfa78f18b7a1fd5. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:46:13Z), 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/BRSME2001457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a801db921815adce62ed69fe0f6ccbb15f413875f863ad0aeecb0da90743ff. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BRSME2004631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c564e3a4f0d2311fbc7ae53633c8678d0ab69c9c1496444353bd9924d9e542. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BRSME2004624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1700c541930f865b0f03a5265c0a795a5ca47137c05f58bc6d2bf7b95e67da34. 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/BRSME2004628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d88f360a7c9b9f5ad8337b8cbda865420c3cabba24f3f425f3d37519eae9c4. 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/BRSME2004629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d82408f7bd2ec5f1257318bebc3a0589a03c5c0a6bd81f7d5b17af410b7c18. 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/BRSME2004630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a801db921815adce62ed69fe0f6ccbb15f413875f863ad0aeecb0da90743ff. 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/BRSME2004631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951fab1d9db00f9d7c9a24e140508743dcc2df04993736dd532dc3365b464e46. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/BRSME1903242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6ca42fe6afd7f968549df84259b481a9d6280ea3b4763683f8faa8c1fddf80. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/BXBRU1800109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe935bdbc8ee8d8bdf390ee9210fb907c5ca17127394b51d7a3b4786aab941626. 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/BXBRU1800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd947b65bbabce3bbf9b550613a29455c3ce7e4b8895b34436c81ddebd628125b. 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/US7VG2000554.