Big White may refer to: Big White Mountain, mountain in British Columbia, Canada Big White Ski Resort, ski resort in British Columbia, Canada Big whites, upper-class colonists in French Saint-Domingue
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff65cd3d9f8af4ff2834883f0fb91c2831c1f9cd140b7ec1eb8d7fd492f86712. 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/6c98c174-9f70-4603-976c-e00b35a5e309.json and https://artists.proofprofile.net/proofs/artist/6c98c174-9f70-4603-976c-e00b35a5e309.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).