Guy Smiley is a fictional character on Sesame Street who was dubbed "America's favorite game show host". His skits are among those on the show that parody commercial media. Smiley has also hosted This
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553cd1e4b05bb0cc04ab03cd7a6d36c0f607cc7f819cbfdbe9cb8e8f300167b3. Chain 2 (Bitcoin): anchored in block 953984 (2026-06-16T18:08:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d2e4124-2cd8-4c88-a4e1-90809ab3dac4.json and https://artists.proofprofile.net/proofs/artist/2d2e4124-2cd8-4c88-a4e1-90809ab3dac4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).