Luther Henderson (March 14, 1919 – July 29, 2003) was an American arranger, composer, orchestrator, and pianist best known for his contributions to Broadway musicals. Early life and career Born in Ka
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 0x8a6142a211a5a0db83839eb7d6d84f275c463be3c711cd017d7345dca1ade905. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ec9ed33-cb9c-4af7-a6db-0373c91fea4e.json and https://artists.proofprofile.net/proofs/artist/2ec9ed33-cb9c-4af7-a6db-0373c91fea4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).