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 0x9e70a8c49a55f23fe90764c7fb5f7e2ebfcbc5f752fd040b184ba55584bec531. 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/2275f292-6915-4d19-9e4a-6362c2be934a.json and https://artists.proofprofile.net/proofs/artist/2275f292-6915-4d19-9e4a-6362c2be934a.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 0x2daa61f1d921d721a2a4435f05f06cc03b0b6bec04027e150000f5478c08709c. 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/USDY41513346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9746a0fcddb765e7a2728d6b24b59f73e6b5a5913cc491efca75293c04b5ce. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USDY41513351.
Intimistas no Estúdio Showlivre, ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbb3a13a117a3b9864c4f002822b29be787ed71765eee79541ae9d87958f59b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BRC831700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248b4c6e8d6fc55be67121f44abe4688a26330354262a7ef9111261b98fbd8ef. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BRC831700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b9f48e62c3362c913a9cbd71cf01b8de75383a48a12719c5b24fd5bf39a11e. 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/BRC831800051.
Quem Vive de Amor Não Morre (Ao Vivo Feat. Vocês)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf780af480e9e708a2522ed890873a69671853a536aa3fffdb3af463e2c0059bf. 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/BX5TN2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3148ebd9fdaa3c8d037080aba04a6cbfc750aa245eff05b6e2a03938e11b707e. 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/BX5TN2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ce72b3b9677e02d9732eb347eb80fd63759b714183dedce2f7421fd85fb8d4. 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/BX5TN2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dcad636791c462df870d57ecf2902f0ab55f410d50abd550926a250281126f. 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/BX5TN2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1b4fd42e75644106cfac5a4f527abfd091288f00353ad810de328e421d1a76. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BX5TN2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc14d40b4b387da7d0ec65bff831e94b63202d4c0175b084fb44d0a4afe0ca2. 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/BX5TN2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0af5b840e4900ac491b667b9323be2ba1c0b79bf2bd4d383b25845a2eea104a. 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/BX5TN2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf780af480e9e708a2522ed890873a69671853a536aa3fffdb3af463e2c0059bf. 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/BX5TN2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1cbb2da68c23f3bb1ed2257e9c232b4a9484f36fbb76d16a0af9126531cbbc. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:25:51Z), 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/BX5TN2100012.
Danos Irreversíveis / Velho Amor / A Sós / Ex Namorada / Nuvem - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01eb61a0397763b62ff5d66d4b29ed2dd1c640d5634d67980f74df8f58fc3a2. 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/BX01B2300277.
Hoje É Dia de Pagode / Chora Vagabundo / Faça o Que Eu Digo / Agradeço a Deus / Só Felicidade / Samba da Gente / Tape Deck / Tia Nastácia - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3f3ead6f837bda55cc70d447fb989f04892bb4d2270a3bd2b74fa7f59b8a41. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BX01B2300278.
Mais Que Amiga / Vim Tentar / Sem Te Machucar / Segura A Onda / Aceita Paixao / Samba De Sinhá / Samba Bom - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5aa26d58a872f3c1e34d32d56fee43b5ec6e2e8e5edf33a283b34154a20e0d. 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/BX01B2300279.
Picada de Abelha / Dono e Refém / Trovão / Só de Olhar / Luz das Estrelas / Marra de Durão / A Carta / Lugar Lindo / Calma / Talismã da Sorte - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9175fbf9fd48cf74df2f6edbcaf6f760a5084d344156c35270d1303840da247a. 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/BX01B2300280.
Chocolate / Louco Apaixonado / Tarde Demais / É De Arrepiar / Brilho De Cristal / Demorô / Pro Meu Mundo Girar / Tem Medo De Amar / Dessa Vez É Pra Ficar - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3175ef8c210d831ec4d4d9f2880282db074321678eea6fe78defc35827a925af. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/BX01B2300281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1880006ad1ca11491f443fb0efa50f2fa92000a8d78e80cf327bb3b6381fb0. 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/BX01B2400172.
Amor Estou Sofrendo / É Bom Demais / Alma Boêmia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206b511444e99656b2398eb96b5ce062476875696ff9abb0260e9eb4284b3919. 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/BXSWA2200009.