Evert is a Dutch and Swedish short form of the Germanic masculine name "Everhard" (alternative Eberhard).Evert at the Meertens Institute database of given names in the Netherlands. It is also used as
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 0xb44562eaea32bf99e2004c57b0e71b8f7bdcb74a53f6740dce84d5d17e2728c2. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cee55ee3-b71c-456e-a8c8-aca6b2b92619.json and https://artists.proofprofile.net/proofs/artist/cee55ee3-b71c-456e-a8c8-aca6b2b92619.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).