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 0x5f8ff631b697f832970e981fa087505c38e0893da1f4d105b4ecacf50ef86c8f. 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/b32600ca-8423-4a65-a255-10982d3b566d.json and https://artists.proofprofile.net/proofs/artist/b32600ca-8423-4a65-a255-10982d3b566d.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 0xe290b84e9ca2c116f1ee16791c0530cadc0327a8ccfe943a22b5bf19d3199776. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/BR72Y1900059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834877fa9e8932275bb5ac27487a1c20363af77c6ed99934cf1d96d00f67486f. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/BCPPA2000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57339619db1758aec0e99f30f9625915b8c854af0fc6c6e0d543a11347ea140c. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/BCPPA2000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bd3f39c44fa181d88f9d68a2c9274a088f2bc107e9087c779439829b3f350e. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/BCPPA2000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c20c6a0bb78d75e58db0ba32e8c9bf8bbe6a054b23b8ec51d10e04c4cede89. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BCPPA2000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4037c732e6be0a4fc08a9414fb9770cb8175cdc67155016fcb1c13e82a6d35a4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BCPPA2000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e22dbe4de6e58dc3b3717e59e776bf805b3f72f7fae62d75c182584aa4dee9. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:52:31Z), 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/BCPPA2000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64e85ddf4274d87b3a5a86c063973f5cea11a82be0e0e2a7e65d963a920cc0c. 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/BX08L2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9118a0a8ce069130ef1b4a9c118de195c3bf10cb9acb5b75f631d9c69537acc. 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/BX08L2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd341cc4296548c7914dafb6282bd876b31332ab5468bd464855c6068d458bca0. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/BX08L2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09b94a1f7d093d82f99ecf9155ccf3d5a9b5555aace1749be74f0dbb6eae5ab. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/BX08L2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157e194a99c8a9f8435bc0590cc3702cc92f098c6214ac825ce5e591b41d9841. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BX08L2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae9302361fcb3c3fb66b1a744712f15f67388360ef0b8c0b60d658451f403eb. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BX08L2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd852253ca8ac3e5758812acb939198353d4e28bac6356a94a6ff2dbf8fcb80fc. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/BX08L2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77df6089157a766b44cecf09746e2edee84ff627001be20efacd0f881fe21c06. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/BX08L2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869d3929799a0355dce49874a63c213e4b9ec4eba1dedfb5bc40cc95f28c93d7. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:30:35Z), 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/BX08L2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0b1fadbe664b1285a711d7ec5703bf31eaf3a02b00fa83d882e92e8736c3c1. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:00:45Z), 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/BX08L2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d51a0e654ca70fa566b741952ffeddfbb50b4e9961f42a21aa3ee1a1b74401b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BX08L2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fc27534da65e9119c70c171ff78cc125f44a78bcaa71e47ff8471bc8a55498. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/BX08L2300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19665abaa76133a85869f760b3ae9b004da4763f92b8d537aea40bee20c7512d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:30:23Z), 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/BX08L2300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690147117620c58570efb1ebc9626d3103a9c058c8cc1eaa95410cdc592d9ad8. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/BX08L2300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb48f54a383173ae76af831b23e37fa3138ba449d4e9130318a956c07949c49. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BX08L2300037.
Melhor Não Me Deixar Solteiro (Quando Eu Tiver nos Rolo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862f2a1a39d0992475df10357eab11157153b638cebc4b58b938e180a7b647e4. 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/BX08L2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb43a0e0075a3ecdb2d302b757704311328ee9a5134ca44387379ad7160e431. 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/BK7J82400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c15c535350711bf244d5e7c635145d3f761614cf8c5810e3492c0c28fbb0c42. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BK7J82400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa063dc116ac9a623f20e800ef691a791a5245a3fae6356af46e7980197deb7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BK7J82400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827854c00e3f32227c1ad048922a15872db0f95dcf57eaa0a001fe74512ef18d. 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/BX08L2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827854c00e3f32227c1ad048922a15872db0f95dcf57eaa0a001fe74512ef18d. 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/BX08L2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827854c00e3f32227c1ad048922a15872db0f95dcf57eaa0a001fe74512ef18d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BX08L2200030.
Amores São Coisas Da Vida / Tá Faltando Amor / Porta Retrato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50929c9e26c30b84079b424782906549279bb6906afd0f7098ea1e0574b80d8c. 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/NLRD52354714.