Smyle (pronounced "smile") is the second commercial mixtape by American hip hop recording artist Kyle. It features guest appearances from Chance the Rapper, Jesse Rutherford and Yuna. It was released
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 0xcc93d4da36cdc76fcc78373e352f3f0b95de8cc250cc88c766312a592d358a04. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15f3e033-ec71-4e67-909e-a89cb0f134d9.json and https://artists.proofprofile.net/proofs/artist/15f3e033-ec71-4e67-909e-a89cb0f134d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).