right|thumb|Lambing: the mother licks the first lamb while giving birth to the second Birth is the act or process of bearing or bringing forth offspring,"birth". OED Online. June 2013. Oxford Universi
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 0x6e8cd678c089155c711b9fce8faffbd7e01a716f6dd3cfaf4a42617c7a10497e. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cfc9f7c1-8990-48ac-b50a-54f26c7d341b.json and https://artists.proofprofile.net/proofs/artist/cfc9f7c1-8990-48ac-b50a-54f26c7d341b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).