thumb|A Highland Pony, demonstrating the pony characteristics of sturdy bone, a thick mane and tail, a small head, and small overall size thumb|A Shetland pony shown in harness A pony is a type of sma
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 0xbb3f2877a1ed5295ed6e6340cd6f0622c96b55c359adb51b151194289513db6f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6e1523d-7499-4b1c-bee5-5f35a72315a0.json and https://artists.proofprofile.net/proofs/artist/b6e1523d-7499-4b1c-bee5-5f35a72315a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).