thumb|upright=1.35|Ängsälvor (Swedish "Meadow Elves") by Nils Blommér (1850) An elf () is a type of humanoid supernatural being in Germanic folklore. Elves appear especially in North Germanic mytholo
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 0xc02c0064f8a888f9b5243889e303fdb8fadf432c2401971e556f07a64030e8d8. Chain 2 (Bitcoin): anchored in block 953895 (2026-06-16T05:46:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ea5be69-d847-478a-944e-d8839b7f773e.json and https://artists.proofprofile.net/proofs/artist/0ea5be69-d847-478a-944e-d8839b7f773e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).