thumb|300px|right|Florida State Seminoles fans performing the Tomahawk Chop The tomahawk chop (also known as the "war chant") is a sports gesture popularly used by fans of the American Florida State
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 0x34a434660faf562b4a1c9a84c50786467f29c8dbc19ca80c2aa829d6596a682a. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98a2f56c-d12c-4b3d-96d4-eac16d01cb92.json and https://artists.proofprofile.net/proofs/artist/98a2f56c-d12c-4b3d-96d4-eac16d01cb92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).