IX may refer to: IX, the Roman numeral for the number 9 IX or Ix may also refer to: Arts and entertainment Music IX (...And You Will Know Us by the Trail of Dead album) IX (Bulldozer album) IX (
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a290724c2ec05e3f35ef23043a1db7b96920cdbb516268e9a11b25f6320c5c9. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c34f1f3a-45b8-4530-95b5-234c69df2ca6.json and https://artists.proofprofile.net/proofs/artist/c34f1f3a-45b8-4530-95b5-234c69df2ca6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).