thumb|Irene Reid in 1962 Irene Reid (September 23, 1930 – January 5, 2008)Obituary. Jazz Foundation of America. Retrieved 20 April 2013. was an American jazz singer. Early life Reid was born and r
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 0x6370108eda1087e8b22965d511a04bd2b70c927940f30ef12de646e5fb745329. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2402c5e9-df0a-4012-b8c5-60af56da1ca2.json and https://artists.proofprofile.net/proofs/artist/2402c5e9-df0a-4012-b8c5-60af56da1ca2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).