The Cree are a North American Indigenous people, numbering more than 350,000 in Canada, where they form one of the country's largest First Nations macro-communities. There are numerous Cree peoples an
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 0xee5c2c07ac006203d6f8852f9bccea8e4c577f07ee307babb8958777fb254266. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffdbbf27-1150-43e2-90a0-b78a1cdc559b.json and https://artists.proofprofile.net/proofs/artist/ffdbbf27-1150-43e2-90a0-b78a1cdc559b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).