Elfriede, also known as Elfreda, Elfrida, Alfrida, Aelfrida, Elfrieda, Elftrude, Elftraut among other variants, is a female given name, derived from Ælfþryð (Aelfthryth) meaning "elf-strength". The na
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 0xfb6587a3338f147b305e7ab9cddd21f121c763951ef1ee82998c8cd97e2fea40. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/948cc6d9-b0cb-4a1b-8f4c-41cea421a06a.json and https://artists.proofprofile.net/proofs/artist/948cc6d9-b0cb-4a1b-8f4c-41cea421a06a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).