thumb|Pony Club Games at the Cheshire Show (2012) thumb|Monash Pony Club, located in Melbourne, Australia Pony Club is an international youth organization devoted to educating youth about horses and
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 0x9f362cb2514a86294ac5a50e906a858f8ced1e6f5396fe236b3ffc46fb518ba1. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2777d6a-6448-4500-ae85-435b52f47a1a.json and https://artists.proofprofile.net/proofs/artist/b2777d6a-6448-4500-ae85-435b52f47a1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).