PSLab is a lighting design company based in Beirut, Lebanon and has offices in several other countries. They design and build lighting fixtures for residential, commercial, and community spaces. Hist
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 0x49261784dfa937b737903f59d373faf11957d5107680db4e49d4dbf07ece47e6. Chain 2 (Bitcoin): anchored in block 954008 (2026-06-16T21:31:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33440d2a-5bc5-4dd5-b36c-64ad0440482d.json and https://artists.proofprofile.net/proofs/artist/33440d2a-5bc5-4dd5-b36c-64ad0440482d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).