thumb|Glass admiring Mammillaria glassii, named in his honor by his friend and business partner, Bob Foster Charles Edward Glass (24 May 1934 – 23 February 1998) was an American horticulturalist and p
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 0xb70bb6d4b61688fd748cb9597ff710e37e1fcb449857d77106c66d98c3fb2a94. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce6e0511-8b1e-46e1-8410-ba4d2d0ae9ac.json and https://artists.proofprofile.net/proofs/artist/ce6e0511-8b1e-46e1-8410-ba4d2d0ae9ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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