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 0x5a50bfb294c930806cdd7830ff2a776b0644a34a56fe3b151e8cf58607c417ec. 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/4cba5140-ed0b-4c73-8755-cd8f793f3c10.json and https://artists.proofprofile.net/proofs/artist/4cba5140-ed0b-4c73-8755-cd8f793f3c10.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 0x2251c6eded5e5d0ec078cef13a5e42db9a39a0083de3d98a9b44e2c0b967119a. 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/BR03D2101376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71bdf3061e6ba9aacac1c67212018d176159cae747819ebad55805a67e98906. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/BRPRX9800929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d21e70f4fded8e5b91b9602edc59e3138f6bff484b63bd4ffc840456a8b202. 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/BRIDC0600053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608ff128a5beb2c5fb9b7b950c724ab24bf8b3c073dfb308d0a1691d796c1dcf. 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/BRIDC0600054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a63f59ba2188f2864a03d42a16448cc576157cda82be334c1b955cbc9f359b. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/BRIDC0600055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4938e1db15fffbf77bca4a9806927f44721466f06d70b5996db313e8fac1d77e. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/BRIDC0600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb4c8d5132dbaa9e92609170910dfbf1d1b59d9e0ebe56c9a87e8c1c5e71e2c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BRIDC0600059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315174cf2bc789c3755ee352bb9f9ebd659702069a9748ca8a7553006a9da123. 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/QZ5AB1815758.
Sentimentos que Afagam / Suprassumo do Amor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70ff6fccd0930512824713f5144b369734e36f8974276f604bb9cb2c089c476. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/BRPPD1900422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19feb2e1016ff0b8c94d9e0b88d03d69ecc0865294dc33b7e34fc8716cb71d13. 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/BRPPD1900425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065418169c1372d11675c48f557cfc9ac43b0eb161724a7984f82ff212a7ce8f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRPPD1900426.
Giro de 360 / Brilho no Olhar / Se a Fila Andar / Lucidez - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a191efa6a845f43d3afd7ad52129ddaa3d8a6668e33d5aa38f0bdd596759031. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:54:05Z), 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/BRPPD1900427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4c9445d947770ae706b1e7f8bd964b794bb89821624a3734e8a1eb20245d3e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BRPPD1900428.
Grupo 100% no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83eec940d13159cabf7c669f3a2397146110f261646c894441edb3ae782e8602. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:48:06Z), 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/BCYQF2300014.
Pra Ser Minha Musa / Alguém Me Avisou - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa173b6f5a00b88cae8e0387cef3354696f723ee3679c0637aeb92fc6a855bbfc. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BCYQF2300015.
Dona da Minha Sina / Malandro Sou Eu - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec692c58c3af292042a49c28dbd534f9543de4c953a82c9d5b863972672cec5. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BCYQF2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef88c412bf222473462efd29b212dcc2a6a056a3988ad32f2bab3a853432d559. 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/BCYQF2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec95253c9384df3eddb8fb318f3e980e782f2e6375e91480701b5dbcbca6c8b5. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/BCYQF2300018.
O Pai Coruja / Insensato Destino / Conselho - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abd4e25d322d63867f04b3eaa28ebb9819b90290dc0df5cfb45dbee082ef230. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BCYQF2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7f62f5948cb0798450f653f2775132578478cacfebe2451f964da0296d2ee1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:51:22Z), 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/BCYQF2300020.
Perdeu pra Cerveja / Toda Se Querendo - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf460776d958016a6844c0ab7b24d838e7994c657cbdbf551b60b2fff164783aa. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:24:58Z), 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/BCYQF2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663172d4b37b9d6289de7ef953e3d01f2ced42b9c20ffc305d6bf66e458870fb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BCYQF2300022.
Nascente da Paz / Vai Lá, Vai Lá - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563878303297ab80d5b9a4d3a1bbcff0177b0b5267c68e45b46d3b742865633b. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/BCYQF2300023.
Cadê Iô Iô / Luz do Repente / Vou Botar Teu Nome na Macumba - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be747c7f75c1638043d7cd29f61f58a91d3aff2a8258de3718bda9037e22e6a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:53:21Z), 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/BCYQF2300024.