Doris Troy (born Doris Elaine Higginsen; January 6, 1937 – February 16, 2004) was an American R&B singer and songwriter, known to her fans as "Mama Soul". Her biggest hit was "Just One Look", a top 1
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 0x73d53a1248e35b8a18b7c4369a2485935c6055f2a717a3a2afe0543d9d519891. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80bfd007-496a-4ed6-82d7-e148870db034.json and https://artists.proofprofile.net/proofs/artist/80bfd007-496a-4ed6-82d7-e148870db034.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).