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 0xfb5a07a5538e578e1e72765245fbe8d7ca3eb434d8919ba770ce0dcd5aa32044. 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/b3abf0b1-1c26-4aa3-991b-5c09d79a98b7.json and https://artists.proofprofile.net/proofs/artist/b3abf0b1-1c26-4aa3-991b-5c09d79a98b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
KLRAE (The Unfinished Album, Never Will Be)