thumb|288x288px|Pyrrhic war dance A war dance is a dance involving mock combat, usually in reference to tribal warrior societies where such dances were performed as a ritual connected with endemic wa
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 0x94d40a4b3240ed5921223f22dc2c00eb5b0df6974f5767d7760e55a989b8063b. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23b8e4c0-d287-409b-b9c2-7b1e1eb2acf5.json and https://artists.proofprofile.net/proofs/artist/23b8e4c0-d287-409b-b9c2-7b1e1eb2acf5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).