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 0x701a91f0bd71116b663890bab4a8436e6a99cef21eb533757b6cc686faaa522a. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d811b7f-efd6-46fa-a9ac-e1f17ee1a346.json and https://artists.proofprofile.net/proofs/artist/0d811b7f-efd6-46fa-a9ac-e1f17ee1a346.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Os Sambas Que Não Desfilaram (Estácio de Sá)
G.R.E.S Estácio 2024 Samba de China e Cia
Sambas de Enredo Carnaval 2018 - Série A
Vira a Cabeça, Pira o Coração, Loucos Gênios da Criação
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 0x079222b0896d5405241a693f54f8e702966c5dd51cd7053f2f48e6a36e2a79ad. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRRGE1707631.
Rainhas do Rádio: Nas Ondas da Emoção, O Tigre Coroa as Divas da Canção!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf01e274a7cf7ca0558eb882e08e3111b82c9c3c3c3cd8e7f45da6852e309591. 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/BRRGE1707634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510148486455270ca148f248ea3d45bb85ba05430d3a962c65ec11d52be84e33. 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/BRRGE1707635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284448a8e48f40069a2d62560e3d30b22a84347362dd8e7e52f847e86a2b081d. 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/BRRGE1707636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184ccda05278a1d85c0826e0ea40707f95d7a26cdf39e8cb28f3621efc04cd40. 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/BRRGE1707640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952913ecc4b3b60d25ef648df2fdff9628c5acfe89ee7bcee15555100e58de85. 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/BRRGE1707642.
A Travessia da Calunga Grande e a Nobreza Negra do Brasil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb44f7933a33b917f4aff5f84e49ff518ba630bbbeaee12112f1ac1bcdfcc5a2. 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/BRRGE1707643.
Sambas de Enredo Carnaval 2019 - Série A
Qualquer Semelhança Não Terá Sido Mera Coincidência
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0534820a92b6e943bdeffdfa1e6634aed43118c8daefae058f3cc8e228f22a8b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRRGE1812614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd5ee6860246f8b54144b6d500eda5eebbf20a225c9a010b026d944eb5beb14. 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/BRRGE1812607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be446b2eb0be36ace90079bd989b70f25107d4e75d6f6f5dffa19855154c3ca. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRRGE1812615.
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 0xa3252bd6b08de34d362c0921399b0b52a08addbbf6b5d0b81890e03df3e56aa9. 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/BRRGE1404433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f4b401021417b27d74e069453170851fbe5e5c3c99ec68ce4b1cb8da334f78. 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/BRRGE1404434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a00965b3d65e13904d61741891c9d6362596f6d7c8742697c16e39ec6ece6a. 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/BRRGE1404436.
Cunhatã Chama Curumim Que Eu Vou Contar...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f16dd7ffd574b0a924f930c38a36fe95ec5a5fa87f066fcc6bff5cb3f2ec56. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRRGE1404438.
Candeia! Manifesto Ao Povo Em Forma de Arte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432cc59536765b0eb66d97ed2c16ed932ace51d3a1d75448635c78195f643a7c. 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/BRRGE1404441.
De Braços Abertos, De Janeiro a Janeiro, Sorrio, Sou Rio, Sou Estácio de Sá
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000a4bde50cd9fe9111b2ddbc7c34e3c4efa9933d6a7f89905a631bc07e63a40. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BRRGE1404432.
Sambas de Enredo Carnaval 2017 - Série A
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0def5d1de98a886b54c667841152919fb00a1550b96806d008fb92871ca8ed. 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/BRRGE1606272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f2d177006834ec8da087dd91309a15bea79bf988db36bd988d55cba7655185. 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/BRRGE1606273.
É! O Moleque Desceu o São Carlos, Pegou um Sonho e Partiu Com a Estácio!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9d7546822bb5c59558a06d8d2e40ebb4669023c80562a0dfe059daf1fbe48d. 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/BRRGE1606274.
Versando Nogueira Nos Cem Anos do Ritmo Que É Nó Na Madeira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8baa1cf83b9ff106bb3dd630b57a685a32835a9d641828d6914e61699c5327f2. 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/BRRGE1606277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0e39e5c3f41ddabaaf9d9e7e7e6654bfb2da5583c4c11f6e7f0a6678a54110. 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/BRRGE1606280.