Kemal Amin "Casey" Kasem ( ; April 27, 1932 – June 15, 2014) was an American disc jockey, actor, and radio presenter who created and hosted several radio countdown programs, notably American Top 40, a
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 0xf17c09d492866331ac4ad5244790fc5e186971cbc111ce07497003c440d4d99d. Chain 2 (Bitcoin): anchored in block 954046 (2026-06-17T04:53:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4107f017-004f-4854-8ed5-aefc24ebbb9b.json and https://artists.proofprofile.net/proofs/artist/4107f017-004f-4854-8ed5-aefc24ebbb9b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).