Marz may refer to: People Marz (surname), notable people surnamed either Marz or März Marz (rapper), American rapper Marz Lovejoy, American hip hop musician and rapper Places Marz, Austria, a to
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 0x03045a6829a8321870003fc7a3d1075f3c1d33c9fd272a9913a2f476a8893d2f. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1128db84-9246-43c4-bbe2-ad3105328c07.json and https://artists.proofprofile.net/proofs/artist/1128db84-9246-43c4-bbe2-ad3105328c07.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).