WRX, or wrx, is a three-letter abbreviation that may refer to: FIA World Rallycross Championship GB-WRX, the ISO 3166-2:GB code for Wrexham (county borough) in Wales, UK Subaru Impreza WRX (World
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa025f09f0dc4ef0ec4009b5b6fff0d51a5b0d5ba75742b7ee37e988539df4952. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9943749d-c923-4889-8a09-59c4355ca2f4.json and https://artists.proofprofile.net/proofs/artist/9943749d-c923-4889-8a09-59c4355ca2f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).