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 0x3d5095b101df3928c727fee960db13a1729b30ea709bc07814999e1ca9a8eee5. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d32e5fc4-b1f8-4d1d-a592-3943d801d82b.json and https://artists.proofprofile.net/proofs/artist/d32e5fc4-b1f8-4d1d-a592-3943d801d82b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Luazul #2: Deixa a Vida Levar (feat. MC Vinny e DaPaz) [Acústico]
Luazul #2: Deixa a Vida Levar (feat. MC Vinny e DaPaz) - Acústico
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 0x866dd0912e8bf2d25f8096249e02e7276cecf29701164fd4c6c76330905bcc63. 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/BRWMB2100622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbbaa5443f86315adb8f9674fcd33b2cb06eeabd10f94d1fbdf75de6a99b6c9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BXGKH2200283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2825b94f54823cf04c895da51ef3cb2de7a9f17c3766cb001aa81df77df74a. 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/QZNJX2274863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13922ebd9bf071e3104280ab3e09806691e47aee9d0f774e60a72dec11b22ba4. 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/QZW9K2370392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc2ea646720e9ff6b074190eee0f6cfeed85a3b7c65975484ecba6a5bb584d0. 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/USAT22305247.