thumb|The Turman Halfway House, a Texas Department of Juvenile Justice halfway house in Austin, Texas, U.S. A halfway house is a type of prison or institute intended to teach (or reteach) the necessar
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 0x95104a4dcaafd5aa7dbbcc7260b21a4c4794f3e34516f77055724dbd17bdbdd3. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a05d932e-8d36-4704-ae39-675e28bf723a.json and https://artists.proofprofile.net/proofs/artist/a05d932e-8d36-4704-ae39-675e28bf723a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).