Doris Dana (1920 – 28 November 2006) was an American translator known for having been Gabriela Mistral's partner, the Chilean Nobel Prize winner. Dana inherited Mistral's estate following Mistral's de
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 0x448ddc2fe1702168fb6c19bf3a495a5918f97f8ed9304873c26cc707b01cf3db. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42078d0d-4d30-4b47-9b5e-bcdaa410b2d4.json and https://artists.proofprofile.net/proofs/artist/42078d0d-4d30-4b47-9b5e-bcdaa410b2d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).