thumb|upright=1.5|Euro banknotes and coins Money is any item or verifiable record that is generally accepted as payment for goods and services and repayment of debts, such as taxes, in a particular c
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 0x4788f9b6b53fd0754e66338e43a995ee1ceeecfb455aa7ca5332a3348f03a14d. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0130fac1-d4e5-41b0-a39e-0b8b7a387aee.json and https://artists.proofprofile.net/proofs/artist/0130fac1-d4e5-41b0-a39e-0b8b7a387aee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).