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 0x3c19ddb5b6a3417fb7680055917e77e21b5b0fc17ccd735b3b5d6fb89549e4c8. Chain 2 (Bitcoin): anchored in block 953736 (2026-06-15T03:21:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9937a32d-aafa-4b8d-ac01-9a29687be215.json and https://artists.proofprofile.net/proofs/artist/9937a32d-aafa-4b8d-ac01-9a29687be215.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Corneta de TikTok x Chacoalha a Umbrella
Aquecimento das Planetárias x Sempre tem aquela amiga Bandida
Toque de 5 segundos x Em Cima do Paredão
Já Tomou Mais Tapa Que Tambor De Macumba
ROMANCE COM NINGUEM x PRA QUE VOU SER SÓ DE UMA
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 0xf4f3f46bb10bb7002c5f6e2c49fc21266ccd7e411210d4260285f65adebbb61c. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/BX4IU2505392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdacc73ab913ccbf79edb7a131a952001b0180b2cdfa0080f37183e0c50599f. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/BX4IU2505440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3661fc076b587e626fbae846693f73f4509b4815074526b172059e6977932ab3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BX4IU2511606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f54045e201ff520d3745888fcb5421f0a224661276023132f4d443bb431afbf. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BX4IU2514291.
DA PRA QUEM QUISER x VAI SENTANDO SEM PARAR
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ad9cfffbb40583eca7d3ffbf05f5eb7bf0635fa3b15d586dfafd91e79e34a5. 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/BX4IU2501126.