Roku ( ) is a brand of consumer electronics that includes streaming players, smart TVs (and their operating systems), as well as two streaming services (The Roku Channel and Howdy). The brand is owned
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 0x505f5c9b127e0ec178404e41ca6d205e65454a27411aeccfa33ed43d3ea8f4ed. Chain 2 (Bitcoin): anchored in block 953933 (2026-06-16T11:13:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f41899c-4abf-41f8-88d5-068559405583.json and https://artists.proofprofile.net/proofs/artist/1f41899c-4abf-41f8-88d5-068559405583.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).