Federico Galvis Patiño (1991), better known by his stage name Maréh, is a Colombian singer and songwriter. He has performed his music on stages in Colombia, Mexico, Peru, Spain, and the United States
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 0x7bec96af35c017ce5ef0dc8cec95a76e642f4d1ee49947a5cb017c55c95a06e2. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99aa16ca-c22f-424a-99d2-c1c19f34ce3d.json and https://artists.proofprofile.net/proofs/artist/99aa16ca-c22f-424a-99d2-c1c19f34ce3d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).