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 0x42c85253be04a1ae48d975b89b845d293b617e4787327846a166a872d8279b5a. 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/ab5f09ab-8a08-4812-882d-b211e111b442.json and https://artists.proofprofile.net/proofs/artist/ab5f09ab-8a08-4812-882d-b211e111b442.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 0xc3d9710bcd138c994f0d625d8b6fb3d1c291d47e7d762185d13bee4137b7dd14. 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/GXBAV2499144.
Nós Espirra Lança pra Elas Empinar a Bunda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55c4411c5a2b72aecf52a5ecd7e42bb5f0e44856809645cfb5bb574d85db894. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GXBAV2421487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90c48c838c407143e0c57f7d81cf56646a426242ecf97587706cf1e2f35bd38. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GXBAV2421437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a31a9a3daa69e931c0552fb0c08501b1078a2549677bed9e2c885adf0812e57. 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/GXBAV2421541.
Acha Q Eu Não Te Conheço, Mas Garota Eu Sou Seu Fã
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bff489f484c7c199725e457d1a25fdab7e56f549ae709912a6d48785ccfb014. 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/GXBAV2421528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598ff82626c6f52313560b4e1f554ab5daf7c98e80b104a71a57c676a3b9c418. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/BX4IU2362635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36174358e6d3bdd8f5cc6acf0e7ed3c680e10ed84234746e2eb927a3b39fad22. 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/BX4IU2362140.
Maluquinha, Cabelo Enrolado Sorriso Apaixonante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e9deaf974ddcbb926d595e32e92cfa2b713ce026a9fa373b52ec0e3c0e7d73. 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/GXBAV2396448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c3549ca81443ab69d413acd8127b81cbd27f7a7db715ef7a02b59bf00e48f2. 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/GXBAV2394153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488d51980cdad9a6a093da8889bceb4860588851e93ba7b75de5992704534aa0. 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/GXBAV2388843.
Cada um Com a Sua Sorte, 10 Carros Guardado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cc9514562312f8338a406dca011ad346cebc8157929025b7cfe34bc8d0980f. 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/GXBAV2388977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b35c5002f512342f9c69ce37f429f42f0b0a73931ef3706b1700733968a721. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/BX4IU2361084.
Eu Tenho Que Me Decidir, Fala Quem Que Te Machuca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faac8638eed4111e16aa55ecb6951ba3d77aafe6f6d84c9c4b5f7538589e7a7. 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/GXBAV2387463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6850bfd297e1f8ade9ec910ce1dd1b32ad962fa56bef718a3f6f58d2018a08bf. 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/BX4IU2360747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ca549f7ae43fac0a8d30ba1bf7e0d2329bafb733882ca87edfa256c2f719b6. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GXBAV2377313.
Se Eu Tiver Solteiro Não Vou Perdoar Ninguém
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff8d4f035c08b36dc9c3b57e8566fe624b04e57f6030c5883b3657a76dd9aa3. 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/GXBAV2379114.
Safadinha, Safada Jogando Pros Amigos da Baixada
Tu Me Deu Marretada no Pique do Thor X Meninas Super Poderosas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b4a2c60379f1b495687e35c13beba870dafe043ff39f8110d2badb498f669e. 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/BXIV82337149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adba85429c03a9585cabe95ce9f239beb9c7850d80182aa385511036aa77e1c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BX4IU2357769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d99745685fc0b1a9da7bc4f0bc20d4842a2594ed872e07e492756861cb6ade. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/BX4IU2357792.
Ela só Quer me Dar a Bct Porque Sou de Menorzin x
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a72779da98564a82773ac2ea2f889b839fa7d7466664e96700c04b96b5399d. 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/BX4IU2357767.
É a Tropa do Mini Messi X Vem uma de Cada Vez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57f677a598a60fe2cf18c0c20678ce49cb011d5ddc6ef926df8186e96c837bf. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/BXIV82348687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac6997483c8b2d239fc12ba0212c59294889b821793475be3d3b7d5e8f77bb1. 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/BCHPF2300001.