Sam Brittain (born May 10, 1992) is a Canadian former professional ice hockey goaltender who played in the American Hockey League (AHL). He most notably played as a prospect within the Florida Panther
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 0xe8f5bb50492ea36ea67b4de6c8584c11664c33ea77f8fa03f5cfa896d3762cf1. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1269f03-558c-4e2c-bb94-4144d5a86dc7.json and https://artists.proofprofile.net/proofs/artist/c1269f03-558c-4e2c-bb94-4144d5a86dc7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).