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 0x7bb05fc40e8fd7f266872f688e12cf56a07acd6bdd91733b45b8d731fa45c82f. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8a87029-e3a8-4fb5-9366-ffea316cfb7d.json and https://artists.proofprofile.net/proofs/artist/f8a87029-e3a8-4fb5-9366-ffea316cfb7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Straight from the Dirt New Southern Starz
Straight Outta Bemiss Valdosta/Lowndes County Is Where I’m From
Tha Return of Don Dolla$ (Extended Version)
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 0xf6d7e4ba77ad1fc34d724df0681d9d3efb81bffd7e1598ddd01668432ced4c60. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:24:09Z), 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/QZMEV2348516.
STEP T'NIGHT ft Lucky Lucciano and Cashmere Sandpaper - Radio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf631ad00c33c6182baac3540c9d6fd54a650fa202dbd92621551d2d674baad35. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DGA0E2413527.