MRN may refer to: Businesses and organizations Macquarie Media (ASX: MRN), an Australian media company Michigan Radio Network, a satellite-distributed news service in Michigan, U.S. Migrants Rights N
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 0xfd7412deee5b4de3e2e92c6435780bb8b0e189977025f3d387c869bb30d96f53. 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/cfeb0dbf-e3dd-4d35-9ffe-490eaf672854.json and https://artists.proofprofile.net/proofs/artist/cfeb0dbf-e3dd-4d35-9ffe-490eaf672854.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).