Mason or Masons may refer to: Occupations Mason, brick mason, or bricklayer, a worker who lays bricks Stone mason, a craftsman in the stone-cutting and shaping industry People and fictional chara
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 0x98cd860b19cd66897838bd2d7902167c30db5ae201b87778c2e16b53f27f2b86. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/894a793c-8d2c-4848-9562-2602450eb326.json and https://artists.proofprofile.net/proofs/artist/894a793c-8d2c-4848-9562-2602450eb326.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).