TR or tr may stand for Arts and entertainment Gaming Tomb Raider, a video game franchise Terminal Reality, an American video game developer Terran Republic (PlanetSide), a faction in the vide
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 0x42d19440e6b601d7ee5559a473287533e756a87efc229a5aedc30d02a1519636. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db8064b6-450e-4c27-b6f4-55579092a2d4.json and https://artists.proofprofile.net/proofs/artist/db8064b6-450e-4c27-b6f4-55579092a2d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).