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 0x8fe1de77d9fd1fc9848f733aaa937e986ba2b56c85a55cfae7bb9f628c701bc1. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9de66a29-8a4e-40c3-9aaf-7fc6fc94c10e.json and https://artists.proofprofile.net/proofs/artist/9de66a29-8a4e-40c3-9aaf-7fc6fc94c10e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Still Here (feat. Benny The Butcher, Jay Electronica, Freeway, Black Thought, Metal Feet & Jotaka Eaddy)