Europa commonly refers to Europe in many languages, and is also the name of a moon of Jupiter. It may also refer to: Arts and entertainment Broadcasting Europa FM (Romania) Europa FM (Spain) Europ
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 0x8ed23e69d7fdc1108d15ea863e3e8cc3ad850da7d8e697b26634231511e9a05d. Chain 2 (Bitcoin): anchored in block 954050 (2026-06-17T05:14:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42ada9eb-f6fe-48fc-b37d-38580778ab7b.json and https://artists.proofprofile.net/proofs/artist/42ada9eb-f6fe-48fc-b37d-38580778ab7b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).