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 0xc036fc35ef55e9956dcdbad9bd7ceab9d89917667007060a2f6ad16ab56458ac. 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/ee957801-5e2b-439e-b01f-59fd9d321acb.json and https://artists.proofprofile.net/proofs/artist/ee957801-5e2b-439e-b01f-59fd9d321acb.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 0x16509e31b4d806669d6b2e84c75b2edef14330695de4de1759062feed7ceb364. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/BCFZF2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5672019cc9c14da1ba76d4f0ebae67ab1f39a19bfea1963423fd1258f4778551. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/BCFZF2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87615c43553194be761d25f447596912fb3b9c81972a4126ca22891ca38ff64. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/FR96X2263692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453234f1cd5384bffc72bebeba717b71497a0527b50f21c91abd2c0c410b81ab. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T03:23:16Z), 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/BRVOR2300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b8204c2bbb6cbcf5541997069d4d43861aa8a4df895b0868b395081d96ad4a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRVOR2300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db210c5c796507f1f5875e4f98d757dacb8b27deee598911e391bbbe650185a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKFGT2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408099069199300f260db8df641007bd9bf186753b4bbbe320d8d778641bd3b4. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/BKFGT2300308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287a5e8ef23ca5d7ea9cce9c546b2c0f1e577ee5b98065855b2772d588860a15. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BKFGT2400020.
Já Parou Pra Pensar (Ao Vivo em Fortaleza)
Como É Que Fala Não (Ao Vivo em Fortaleza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4c8bca5e47ec2d583bf834430ddbc64740f94a2ebb7ed0ee0b80e0322946e4. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/BKFGT2400278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1be245611592c33715884ec7d4f618695e92da829f3d17f392119c735699acd. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/BKFGT2400279.
Já Parou Pra Pensar - Ao Vivo em Fortaleza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e5e301e5213a8006ac646aba8541c4b7d541ba4436f885babacc2aebf02997. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/BKFGT2400299.
Tome Forró e Desmantelo X Versão Funk Rj (feat. Manim Vaqueiro)
Tome Forró e Desmantelo X Versão Funk Rj
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78215ddafd352485af6fd1bf45fff7aebd37e80c0535323206b819fd63518ed9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ESA112438872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a54f183ff51006c1e5074f58b115d02b3be32c7050278275851a8ef2fbd7c94. 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/BRVOR2400104.