MRK, Mrk, mrk may refer to: Merck Group, Frankfurt Stock Exchange stock ticker Merck & Co., New York Stock Exchange stock ticker MRK (visual artist) M. R. Krishnamurthy, a Tamil actor Markarian g
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 0x2b67d272422e0eb4166772e6d8d62aa85b11529e816c1032c6d08e22ada6ce28. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e5cd125-a250-43e8-bd0d-03cf7500f947.json and https://artists.proofprofile.net/proofs/artist/1e5cd125-a250-43e8-bd0d-03cf7500f947.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Good Luck, Good Life (feat. ZERO (YVES&ADAMS) & 2LOW)