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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3957842c36204fffc54f18fd99ade136c77b28758cca4036dfd4a19df6c787cb. 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/9cdbfe95-87e3-4743-8317-4de557a61205.json and https://artists.proofprofile.net/proofs/artist/9cdbfe95-87e3-4743-8317-4de557a61205.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f99addf1283fa3956e1d8e6440f222d12ef97c3d4369de7e7fa72bf09880db. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US7VG1588476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d9afb3446ca2bed63a163692411a4d50b3778d2c0d8a72ec3f7172fa180822. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/US7VG1588479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7815aac5890afc48d06a3132de41bd57e5baf2b792c18d1c34a66d8c391ffd. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/US7VG1588482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32722e20e61a7528ea7ecbcec1bbb18d828bfb79438509e244db4f0a4664291b. 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/BRDEP1200259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40dc1b7ca0938e75ed731a71cadc0a364043c1e2f8838881b6599394405dba83. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/BRDEP1200433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b163cb284fca280a9176bd09d837b70a1ce9029e644e6db4c5f89514eeaff6f. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/US7VG1469920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3d1defb567942e94c306fb2796e0f147d2c0536afd0dc9d6b25925766a2bd7. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/BXDIG1600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddae99ac98b1dd5a7d6681c7b19c7574898a85c6edefb00231445cbbff104db. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/BXDIG1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bff5e18890c93fb107f3175a9c9afc38485a809a4dd115a01690d65e833e42. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZ5AB1910965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9958704431f4780f40738db952a8cdd426f659e9d2acf4ef29f9d888452b83d. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-15T21:33:28Z), 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/US7VG1805791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef27cdd782649c52ab256f90e98778b9f27f610260a673363a108b13fd030978. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/US7VG1872708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d64e96b16c74265374562696395a47f43eb5c48ed574510da4af134e60ded5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US7VG1805524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a82c68ad68428f2e9a42b5f945a686167795f4841ded65633318769d0035a5. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BX73T1900001.
Distante do Seu Mundo / Vivendo de Passado (Ao Vivo)
Como Eu Te Amo / Não Há Limites (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82066ddaaf30bbe3ff04312fb38051217e207eacf1f3d85c9819a25d42ea36ce. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/BROYU2000009.
Fato Consumado / Quem Muito Quer Nada Tem (Ao Vivo)
Fica / Dorme Com Deus / Vida Que Segue (Ao Vivo)
Tá na Mente e no Coração, Vol. 1 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012901f815e722a655ada3f97caa31cf09ee8d6b9479018aecd5dfba3dc6b0d2. 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/BROYU2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cebae8e63dcec33242ffcc55b675f95ff22f91e711559789b9ceac0ca3e19c. 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/BR1E02300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35c038844e464718ff09297e2a58e4ef5d4ce0c621f2f8d443c992d6b7c3f1a. 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/BXSWA2200013.
Tempo de Aprender / Conto de Fadas / Corpo Lúcido / Desliga e Vem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a0c2734e52d430462ae4f50d0d5eb18bd3d5db48043524628378f93f889931. 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/BXSWA2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3596fbed871604ddbac77f3f8d263c55704e580da8c78cd9de68dcb6cd5ce4. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/QZW9K2311729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2347e09b38538a029b89ce3e5a1707286ab524fa0f9d9c349706d72cc16a7f4c. 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/BK4T62400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2adfe7c704a959e8c085d9816d5aa864aad9899036abdfde986e0a353e3011. 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/QZTPX2483509.
Vá com Deus (Participação especial de Tá Na Mente) - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6251e769ab4a73cd40ae9315a3247b17fffe06ebb37c9bd24ad2185ecd96d60e. 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/BRWMB1900152.
Lua de Mel / Clichê / Eu Nunca Amei - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e813b49a40dc32748427302c27853cfdd0da5e8b6329edd85e89f4edb60c02a. 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/BXS8V2300009.
Traição / Refém / Me Assume ou Me Esquece - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a908ed4ecebc83a50ccde594df32edfd0eeeee78e7dde95b953ff91bfa3874d. 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/BRSME2200541.
Quem É Você / Carona do Amor / 40 Graus de Amor
Respeita Minha História 3 (Canta Exalta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20bcea39bf45926f4aa527036744b435b897538e3c84680c3344cfb81cb94a6. 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/BXSWA2400296.