Elz or ELZ may refer to: Places Elz, a village in the market town of Lasberg, Upper Austria Elz, locality of Puch bei Weiz, Styria, Austria Elz, Hesse, a municipality in Hesse, Germany Elz, synon
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 0x5d8e651c1562f690a10b9680ad7534bc4a8b4d288a4f3c48ee6730915a183b8d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f6265b5-9d2b-43eb-bf77-567e0113c3bd.json and https://artists.proofprofile.net/proofs/artist/4f6265b5-9d2b-43eb-bf77-567e0113c3bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).