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 0x6b5b989183c6d1a8c6b3354a7afd566c4de302dc4ee9c275c4a679f9eccc8eb2. 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/e7eef4ee-0c8e-4809-80fb-e4dd38ef1743.json and https://artists.proofprofile.net/proofs/artist/e7eef4ee-0c8e-4809-80fb-e4dd38ef1743.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 0x231d50f11a655460ce0c6cc10c0508bba3137616ee3bcff531a560ca7c52f7fe. 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/BRTW82100285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e1649e1f0891f5da1e4f5fbe46de9780ef625e4c79766359f217711c0ea4ca. 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/BRTW82100286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ee87704a567be3d9c8ca6a6b1d77f24cadf3b4474fc6d8227ebb1ef7b3a135. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BRTW82100288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f79e00f9ec5e0575873637a851079aacdf583e9b7a0dedfe13ac84d80592042. 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/BRTW82100293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1333a773a1d3dccf67d0e1ae3dac74e2cf8f022030dd8ce7031f7f6e874ccd5e. 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/BRTW82100294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6b53ff9062dbde971e3ef6f0aa381ea2821bf664472949a62c6a09bbee9e3c. 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/BRTW82000024.
Diga pra Mim / Horizonte Azul - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7333e619b0262ee06243a2106027cae889d2154d73b58cecaba86bff0c8083b. 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/BRTW82400077.
Te Amar Foi Ilusão / Coração Bandido - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d36b09dcc82c2f0087723be9a45a30ed895569d7a74acb7ac35cd329dd502c. 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/BRTW82400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195fc35f8afee9d28ee1272488f5c13d4c7af9f7305bc6c6504d9420cd68469d. 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/BRTW82400082.
Mordida de Amor / Tentação Cruel - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f37c28dd57552832357c62a641b87f3f925f5054ea87dba7a4a06677aa49869. 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/BRTW82400087.
Foi a Primeira Vez / Na Hora H - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ffc8356e86790d6fdae1519b96d032722301c5b1fe12674201f031af5fec32. 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/BRTW82400085.
Enquanto o Sol Brilhar / Vida Cigana - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44197f518c4c0ea7a956f68eaeaff2e1265612ce0d84003c8f55833279dbbb8. 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/BRTW82400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a198b2db1d296b95e52da5783526cbcf60c7cb2fcd75af49217f208d627b78d. 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/BRTW82400113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3071abf675f225f312e996ba27a323d7275c26e475af1fc0c0124a54539bb1c6. 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/BRTW82100284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458e3d9b8e30d69cab776779171319f6bf234cef701514b31b88991e600a8c89. 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/BRTW82100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc015a0b619540dd4a4eb76bf56373a90b16a20a3ce57be4a91c44bcb77d92ac4. 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/BRTW82100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af9df971243942fb475f677c2da3bfd81b1a0881a00aad06cfec59754135d24. 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/BRTW82100271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba4702dd59d3f9ba714b1be5f2a151331b3625374be9f7eb54e953be74a0daf. 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/BRTW82100263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12847373707ec218970811c17d42055170c3f7ae383fbc432da5af055f6e947d. 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/BRTW82100270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58487ae9538fa53ff3bdae6c629cf14736b77fdc19ac69e2bfc3e302e85fb63. 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/BRTW82100268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd738926fb2e3199aeb0b63163973091a20dde46f94614cd6b134cdb6a26bc04f. 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/BRTW82100265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565f1c1c8fc2f40e687fe8440c63205c9c87f685dda0b3b63e16ca5ac5bb98cf. 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/BRTW82100274.
Lenha / Nos Bares da Cidade (Acusticasso #6)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a198b2db1d296b95e52da5783526cbcf60c7cb2fcd75af49217f208d627b78d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BRTW82400113.
Me Apaixonei / Separação (Acusticasso #6)
Confidências / Quem Ama uma Vez Não Deixa de Amar (Acusticasso #6)
Fui Dando Porrada / Coração de Vidro (Acusticasso #6)
Enquanto o Sol Brilhar / Vida Cigana (Acusticasso #6)
Eu Juro / Malícia de Mulher (Acusticasso #6)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8047009e1a8cba7862cf6bed7f9de20d96c491478b05319082121626ae234114. 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/BRTW82400101.
Foi a Primeira Vez / Na Hora H (Acusticasso #6)
Esqueci Você / O Que Falta em Você Sou Eu (Acusticasso #6)
Sonho de Amor / Deslumbrante (Acusticasso #6)
Coração Mal Assombrado / Só Pensando em Você (Acusticasso #6)
Mordida de Amor / Tentação Cruel (Acusticasso #6)
Se Tiver Mulher, Nóis Vai / Gosto de Mulher, Meu Amigo de Pinga (Acusticasso #6)
Mudando de Assunto / Cilada (Acusticasso #6)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195fc35f8afee9d28ee1272488f5c13d4c7af9f7305bc6c6504d9420cd68469d. 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/BRTW82400082.
Tudo de Novo / Não Vivo Sem Você (Acusticasso #6)
Vou Te Amar / Você Vai Ver (Acusticasso #6)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775cbb0ff7ea15d13a12394bfb6a2dc3484422bbea612469fbaf37fb95aad5bd. 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/BRTW82400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0796a2cbf7c14d68595c0ae63ec6fa8d5eb38aab43c88ea6dc393661221c2100. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BRTW82400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f49e18092b1a7282388ec9ea7de5494db3baaaf5dd8e0fef83b4561053ec2c. 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/BRTW82400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487db0a2a91cbc5793aac43b52bb6e79ef3f08e0f4fb5ad5e577ba937ba44d79. 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/BRTW82300084.