A bank is a financial institution that accepts deposits from the public and creates a demand deposit while making loans.Compare: Lending activities can be directly performed by the bank or indirectly
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 0x779f8c1342a1ef5dc0334f7184b19dd8c4a182693bc4f0f6aee6c5c5eaaef71d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2011224-1795-455b-8591-9573d3060915.json and https://artists.proofprofile.net/proofs/artist/e2011224-1795-455b-8591-9573d3060915.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).