Irving Martin is an executive producer, creative director and record producer. Not including other record labels he worked with, during the 1960s, he produced more than forty-five singles that were re
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 0x10034a3c8d7d6158c42e88d301397495c0574269f93a009a73cfc6222cdae292. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8bd154b-1949-4a9f-baab-67dedf33ad4d.json and https://artists.proofprofile.net/proofs/artist/f8bd154b-1949-4a9f-baab-67dedf33ad4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).