Ƨ (minuscule: ƨ) is a letter which appears in numerous alphabets, including some proposed extensions of the Latin alphabet. Depending on the context in which the letter is used, it is typically based
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 0x222b07cf19b38d976aed7c9e826a98a35b12185f5d7c13aa2594b8e2d1329a25. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d20747ff-186b-44b5-bb49-3adcb8ff6bfa.json and https://artists.proofprofile.net/proofs/artist/d20747ff-186b-44b5-bb49-3adcb8ff6bfa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).