thumb|250px|International children in traditional clothing at Liberty Weekend A child () is a human being between the stages of birth and puberty, or between the developmental period of infancy and p
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 0xebb87959bcb7b3e2b7a6f02a5a923ae6b178fbf4e2cad65ffcd15c2fae63e22d. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d291ccd-aefc-4f04-937e-00d43039125b.json and https://artists.proofprofile.net/proofs/artist/3d291ccd-aefc-4f04-937e-00d43039125b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).