Esther (; ), originally Hadassah (; ), is the eponymous heroine of the Book of Esther in the Hebrew Bible. According to the biblical narrative, which is set in the Achaemenid Empire, the Persian kin
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb9c6ed895178c597563feadf80a37395f7ae9582f912a63768e573a83e60a5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e53c6fbe-72d4-41b0-9ed0-91e7dd4dd311.json and https://artists.proofprofile.net/proofs/artist/e53c6fbe-72d4-41b0-9ed0-91e7dd4dd311.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).