Denyse Burnadette Kirline Plummer (8 November 1953 – 27 August 2023) was a Trinidadian calypsonian and gospel singer. The child of a white father and a black mother, she initially faced significant p
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 0x3cf2b011b8201313d031d9536f89d1b3fd08db3532f3f9ff21a9ea58ec31d231. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a50e2f8e-fd1f-4107-a334-0b1991bf6d87.json and https://artists.proofprofile.net/proofs/artist/a50e2f8e-fd1f-4107-a334-0b1991bf6d87.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).