World Gym International LLC is an American fitness center founded in 1976 by Joe Gold during the glory days of "Muscle Beach" in Venice Beach, California. Joe Gold is also the founder of Gold's Gym, a
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 0x17a6db5a822d45bb8d8c04b798c07314cf9ad88ff2e20e6db281459786f74e85. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9db5b99c-9dae-4cd6-90aa-146f96d8ce20.json and https://artists.proofprofile.net/proofs/artist/9db5b99c-9dae-4cd6-90aa-146f96d8ce20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).