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 0x05bd752f5456e2fe40aaccda6cafcb4a03b98c94e46d3564546a2e38b6f09559. 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/933fdb2c-85b5-474e-b53f-1d7991a966fd.json and https://artists.proofprofile.net/proofs/artist/933fdb2c-85b5-474e-b53f-1d7991a966fd.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 0xb63524acb4e3e9ab754b813f8fbdb84e60ffe53a82813cedbb72069acc9a580e. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:23:29Z), 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/BR4VT1200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe558d6c79be60d17b6ff9123487938e623fbee41a1f7e713be8fb02d1cfc57d0. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/BR4VT1200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63524acb4e3e9ab754b813f8fbdb84e60ffe53a82813cedbb72069acc9a580e. 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/BR4VT1200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf86f61918be2f146954f0941c3af19de6ea577a4afa2d9d754d921009d9a09. 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/BR4VT1200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd976399944c5c2bbb4ad66ce763aaa109fe46c13195f49b28056466f326ea725. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BR4VT1200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63524acb4e3e9ab754b813f8fbdb84e60ffe53a82813cedbb72069acc9a580e. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:44:35Z), 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/BR4VT1200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf86f61918be2f146954f0941c3af19de6ea577a4afa2d9d754d921009d9a09. 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/BR4VT1200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cae304ce3380e25f03826bcf1ddd2f708c44121ccb555c58a299aeca4b5065f. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/BR4VT1200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55167322ec8b2e19fa91da3ab49cde425dd29b65e834be845074013a52802cef. 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/BR4VT1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a3c33a5ff087f31d44049ecf27db874e3b96ed1381da6b3a0b9c3b74516c34. 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/BR4VT1700002.
Nas Mãos do Amor (feat. Amanda Rodrigues)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7ea029bbb176f7aacc499f6759289def420aaa1a5cbbcae7c6ed31c3264868. 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/BR4VT1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07dd7472f72c4a98071d506d401a85b1e3af3d6c9fa38b6a5d306f17a1f666f0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BR4VT1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9aac77e6774a83bbc2527e222e9f2e8a1ed3c1de28ab62a5c6727d321c18b5. 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/BR4VT1700010.
Mais Perto (feat. Eugênio da Silva Neto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a1a39842bddf26c9b3aaee7bd19d466c146865b99d9f1d37c0b77561c2ca3e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BR4VT1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0119557203780ef02f7665f21761e9325cd73a06745a7c6b68c012c0195c4ec0. 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/BR4VT1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001c676a437afb6a85244b23f2be2fbeba80f508ee1f09a5f30f36a3f474930f. 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/BR4VT1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12939791ee03e36801b68b5cd2a16f36d5597e6cb86b6f5ce07209350823f100. 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/BR4VT1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d22bbeda4cb4548f79dc5a1cf882356cc7051fc654c6b341d7b9b7e6bc3e3d. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/BRLE01800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa543a5c3e7b7d259a79990836f6f4a8c83eefb022df97ac243ad4fe94869a3bf. 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/BR4VT2200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e63989ba379b34af50a67be36a1a6909a862098090250a314d1d8f10d17e39d. 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/BR4VT2400098.
Thiago Grulha e Fellipe Magalhães Na Casa (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e29b6d6529a67b65a99ec6c78ce5981a271b130a1a48e519ea070d8923dd58f. 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/US7VG1869477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54a9e3824ae5a355862e658372599bff3c69e05dae3c88a694247bd4cf35b80. 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/BR4VT1100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd849e1d20803d99ef0e481b0bbeeac09dc7af9dec7d3eedab9b3a333e0ea85a7. 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/BRPC21000035.
Nossa Riqueza (feat. Thiago Grulha) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdc3341d7e0e79a30103a0171519d18574225338fbdd99bbb230c4b45968699. 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/BR4VT1600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40faeae27dd2697fab1483680c83a708ef109f6c4a31121c2768ed66b61016da. 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/BR4VT1100107.
Deus Está (feat. Leandro Rodrigues, Leila Francieli, Rodrigo Correa & Thiago Grulha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed629ece70d564a5428400c300c2b69efda898fa7a5229bd0d740cef6a62caf. 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/BRPC20700189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f76bf6f58306d19b54302dc70e64e05de8243163a2ae49ebc0b733431401cc7. 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/BRLE01800064.