thumb|Omar Torres in Perm 02 June 2012 Omar Torrez is an American guitarist from Los Angeles, California. Born and raised in Seattle, Washington, Torrez first received national attention as finalist
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 0xfec39ad325f4903988f29832759236fa84fcc4871e8dcc41fbdb65858be4482e. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b93514ab-8351-4ac1-981a-4b9ab9a67f66.json and https://artists.proofprofile.net/proofs/artist/b93514ab-8351-4ac1-981a-4b9ab9a67f66.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).