thumb|upright=1.35|Cloudburst in Iceland A cloudburst is a large amount of precipitation in a very short period of time, sometimes accompanied by hail and thunder. Cloudbursts can dump enormous amoun
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 0x851fac411b11dca2f7547e7c3be88b30d975b1b3f6654897dad8d6d5830dfbc6. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7652fe4b-d15e-4d11-9a3e-bec34673c1eb.json and https://artists.proofprofile.net/proofs/artist/7652fe4b-d15e-4d11-9a3e-bec34673c1eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).