thumb|A group of boys picking teams for a game of shinny, Sarnia, Ontario, 1908 Shinny (also shinney, pick-up hockey, pond hockey, or "outdoor puck") is an informal type of ice hockey. It is also used
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 0x80e6c43cc9a8fd957769227ba8e95ca176a15ba54d7b16a6ee89c23a7d734b8a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5fcef768-f546-43cd-84a1-cabe0b002b55.json and https://artists.proofprofile.net/proofs/artist/5fcef768-f546-43cd-84a1-cabe0b002b55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).