alt=Tourists dressed in 1910 attire picking up moonstones on beach|thumb|Moonstone Beach Moonstone Beach was a tourist attraction in the beach community of Redondo Beach, California from the late 1880
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 0xbb02c13edd021d08367bf23f9eb7c9c73782689015f8a6bb461edc2316394f67. 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/6913c050-bcd3-4a65-9434-0331181cd593.json and https://artists.proofprofile.net/proofs/artist/6913c050-bcd3-4a65-9434-0331181cd593.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).