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 0x213328d605822c5298a4da6e9bfdf7118f4eaaae78ad82e485c55e421ec0a373. 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/ea4f8f1f-da77-4132-8f06-afdc7727d4f3.json and https://artists.proofprofile.net/proofs/artist/ea4f8f1f-da77-4132-8f06-afdc7727d4f3.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 0x76c6780c2734ef3ae6df7794a656f9217d9a372d7da2f13051a8eee85c9dd6cb. 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/BX4KA2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd75e15669af69edc5faec95fa40830ab6dcdb869965126644e6839e51db4aed. 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/QZNJV2325514.
Mano Zafe, Mano Índio X Arrochadeira - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800738feaae5e7ef562c9af9ef69d82128abfd98ab3166094db0336207830b92. 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/QZNJV2340793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3f2564e58ee541d43e9f8628df0502dc6926f6ef00356ba226cb4a60104f11. 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/BKFDF2400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc390f16e171c9e3a0a39c0cd8b8056740f6c8160ab733242ecea8adb0fbd672e. 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/AUMEV2509869.
Pulou o Muro Pulou a Janela Vs É Só Tu Manter no Sigilo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d2e89451908e0c9bd7bdb33a61ec6860a3c89725a3b4b4a3d706b70d3ce777. 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/QZNJY2301059.
Mano Zafe, Mano Índio - Light (Arrochadeira)
Mano Zafe, Mano Índio - Light ( feat. DJ 2K DO CHAPADÃO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f0766fac1735d5e5f4f9950f53f2d2a44a7ef180026226897b8453329e2be9. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/ESA112313591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc606cea8b8e145a2107dd98e4f1a2f31d0fb65f0a39e3e7d923a8f1845e5a800. 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/QZNJW2353687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea5dedfb6a094e1bb57e3733d816175e0104117fa84d17c91207038c1516655. 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/ES47F2300343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdaa34b07dc247c9efbd136fb7b7827ce9d248020ce5c6f40bd4bcb09f9f838. 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/BC3PG2205124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9497f279bbf278f448e535be754e21863f3d8a5a2d5fe28009ed52f96763b1e2. 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/BCPBD2100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fcf15a67cbcd0a4a87f96da02580643e8195accecc405205209e64232c2998. 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/QZMZ92341046.