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 0x199a94d2b13d9dea42c253727876b1a79f4867bd64fce3968a94157e720979e3. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e050bc21-bcb8-4162-bc40-cd2fa1c64592.json and https://artists.proofprofile.net/proofs/artist/e050bc21-bcb8-4162-bc40-cd2fa1c64592.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1feb61fe244cad334245a9ace7a7928aa67851f2e5562902e9b900f57c60f688. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/US7VG1863852.
É Tenso / E Daí / Delegada (Violada do Mansur) [Ao Vivo]
O Que É Que Tem / Medida Certa / Logo Eu (Violada do Mansur) [Ao Vivo]
O Que É Que Tem / Medida Certa / Logo Eu (Violada do Mansur) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90628b0f9658e43df51d3d1e9098bb21619169bf735a8eae0f76bb19cfff6e2. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:43:29Z), 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/QZW9L2207174.
Que Vontade (Violada do Mansur) [Ao Vivo]
Arranhão / Graveto / Não Tô Valendo Nada (Violada do Mansur) [Ao Vivo]
Voa Beija-Flor / As Mina Pira / Ai Que Dó / Vaquinha (Ao Vivo)
Voa Beija-Flor / As Mina Pira / Ai Que Dó / Vaquinha - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f63107b1f3d7c7add6a24e67197e2b58a7108187201a57329efb138de2862f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZMZ92376211.