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 0x5fbd4f6fe2a7fdf0489a45629108066eefdfb8bdccf5d08373a02a201a5539e0. 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/9d0b51a3-6207-43ae-b2d9-9166b58aa888.json and https://artists.proofprofile.net/proofs/artist/9d0b51a3-6207-43ae-b2d9-9166b58aa888.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vestígios / Falando Sério / Mala Pronta / O Que Tiver Que Vir Virá - Ao Vivo
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 0xb13217813ec86a444e1f921d9e6cad366697d444646b5b8f003ad3ae74be457e. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZGLS2371976.
Refém / Dona do Meu Destino / Chegou Sem Avisar - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bda76601487b9d4913d5991ded9573b214c525c8f8cfb35c9ea612e06436a6. 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/QZGLS2371972.
Tentei Te Esquecer / Convite de Casamento / Página de Amigos / Coração Está em Pedaços / Evidências - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e642479815d48a7fc61d422f8ebaf6fce402256583a792c45b047eb50a2f4d0. 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/QZGLS2371975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafab01a07a7231b8cdcafe04985c2711c5a1adf60c8398f258ad0ce3cbd0535. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QZGLS2371973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5189c78bfaa1b64b7ce0430ebaa831fd3dce40bcff8de583c484fe95419fc931. 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/QZGLS2371971.
Juras de Amor / Sinto Falta de Você / Eu Ligo pra Você - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0eb1abf3c0f0406691b4d98bea2a52672ace479426641583a10f2c1ed43a8c. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QZGLS2371977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473770a108bc77f13fac91e760d8c4118df1a5c7269f5056d3b32c7db928562f. 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/BRECI1800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc066da35fcf015ac30750dd10bf5ff5a7b71f727b59cba74d338dac3b3f0e722. 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/BRECI1800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622c1d5f978a4cdee7d6a9f88d4ac2027351d2b7edc9a86e01e66eb5a98e41e3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/BRECI1800027.
Depois Que Você Matar Meu Coração / Acabo Voltando / Na Hora H
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635d207ec5e655670c44f3ced98c95b0bd4432b8794abbbae8a195ced27cd4e5. 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/BRECI1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bf0b7566d5e0ac6ac67aabdc73e148a88ecd68f147f78446d97a6c6f982011. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/BRECI1800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b7dfafead3cdc9617809018a4963bff9c44fcdd6ed088ed34d331c11735ee3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BRECI1800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebdd393432f1c36bc45795eef890a9ae984bc1caf1189d4deef18c8d20230f4. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/BRECI1800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8229e595e73dc9b7e70284d3be213ac402fe5b159cec5c5269b5d9e6ddbaea09. 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/BKN2V2400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2960f846569850060c70db5e0aeca7f3108f9d364125939fbbbd568ed5010b8a. 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/BKN2V2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448fab0c06c8b1a24cfd26f008ca41e38dabe9398064fff1f7f3e0a60091d99c. 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/BKN2V2400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c0693debe7e91973beea390f28293d2721967cd02bade8be53724a2b1465c3. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BXR3T2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f3067c860f1f1672526711ca79bacb6c0ae03fa14e8d04ab3d2585c16cacf5. 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/BXR3T2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623b493de4a823745c6e3668cf461d1f6b239ba8b479af0b6624c7ed61066be1. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/BCUQF2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0cf9e0175a3e8350ae950ad1c487a01216c964cd068f09a0084563d3978817d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BCUQF2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f0cbcbfdd4278d6060753fb87d88c54850dbcca077d366fd6f1d9680d34197. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/BCUQF2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc73f42817b105585edebe0814eed48facf39667a20e5478715bdbe67c196fe. 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/BX7E52000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a20445b94f0f7d664954b3e911e3f6a20d849060e41f2dcc28282266146aa65. 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/BX7E52000012.
Cilada / o Que Combina Comigo É Você (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e256ba8bc72550867e3d8eb3fc0367e043567334284d302abc216edb27089a. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/BRECI1800055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0298dd8337c2c5ce02f2485b791879c94aa3297af8a1d8491dea68419e37b816. 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/BKMKR2400004.