250px|right|thumb|J wave labelled as Osborn wave. 81-year-old male with BP 80/62 and temperature 31.9 C (89.5 F). thumb|Atrial fibrillation and J wave in a person with hypothermia A J wave — also kno
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 0x02592b4f98ba08c7de81c16ca7ea02c7b02d65e75789b24073c32d6b41d6eb5e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64a6496c-1369-46e9-8eb6-dd901574c565.json and https://artists.proofprofile.net/proofs/artist/64a6496c-1369-46e9-8eb6-dd901574c565.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).