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 0xc819448d826775612ac7d6a12275092ec55beaf704c4e3f614a03656eaeeeac4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7873cb7c-b962-49db-9bff-450e678ed690.json and https://artists.proofprofile.net/proofs/artist/7873cb7c-b962-49db-9bff-450e678ed690.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Carne Halal (feat. Baby Gang & Simba La Rue)
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 0xe9269997722f311e6a8749e8165350efa7f4bd2681499bbe480aa3df57fed831. 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/ITY1L2300003.
Fratello mio (feat. Baby Gang & Simba La Rue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dd618646c406c91fdf131a4dd0c529355bbd2aca5beb5ea4b218254f952a5a. 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/ITY1L2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f35eddd720e85f3e284560f30d2686692a875ec17311d2abb3ab91508bd888. 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/TCAFM2116177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0931df65e09b135942d3981b851efe14a4060f0b2352ede2978e7d96f2525702. 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/ITO2U2400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d93ddba9ec4717b052944034abeb5de1e843a90d8363c2dd1cb740d46e02649. 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/ITQ002401308.
Ma Belle (feat. Kassimi & Yunes LaGrintaa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d154f3705668f51b231796db072b97be5dcf829ba049476f6133bf1f3ff1fe. 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/ITY1L2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9269997722f311e6a8749e8165350efa7f4bd2681499bbe480aa3df57fed831. 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/ITY1L2300003.