Tushar Apte is an Australian record producer and songwriter based in Los Angeles, best known for his work with Chris Brown (on "Zero"), BTS (on "Home"), Blackpink (on "Love to Hate Me"), Demi Lovato (
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 0x369712e47a9083baadae5fe52ca3fdc713119a8b9d6ced17419cdc42df56e4a4. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e4ba390-7153-42dc-b47b-48d9dfd628b5.json and https://artists.proofprofile.net/proofs/artist/8e4ba390-7153-42dc-b47b-48d9dfd628b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).