thumb|The 400-meter moonlet Earhart in Saturn's A Ring, just outside the Encke Gap thumb|Another image of Earhart thumb|Another moonlet named Bleriot thumb|A moonlet named Santos-Dumont thumb|A moonle
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 0x3178bb75dca65c569161ef2e8a1fce9845ec84bbc753b2c254a62bd42d5d6d93. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9fe6592-189f-4e2b-83e1-07a43a43af33.json and https://artists.proofprofile.net/proofs/artist/c9fe6592-189f-4e2b-83e1-07a43a43af33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).