thumb|Children performing juggling as part of the International Jugglers' Association supported Mobile Mini Circus for Children Juggling is a physical skill, performed by a juggler, involving the man
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 0x8a53c572a55eaf49edecf344a6c026e16b186dcbe80bbc1bbb2a5f44ca762108. 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/b59ed468-5309-4aa9-80ee-a6da7213c139.json and https://artists.proofprofile.net/proofs/artist/b59ed468-5309-4aa9-80ee-a6da7213c139.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).