thumb|right|Mikk Murdvee conducting at University of Helsinki, 2008. Mikk Murdvee (born March 20, 1980)mikkmurdvee.com is an Estonian-Finnish conductor and violinist living in Helsinki, Finland. Educ
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 0x67b9cc75b290f9eaf287212d13261ac13284510040679e013b4d8d2fd02e5098. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d3fbf66-098f-4c28-8703-7ec9ada317da.json and https://artists.proofprofile.net/proofs/artist/7d3fbf66-098f-4c28-8703-7ec9ada317da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).