Amir Issaa also known as Amir or Meticcio (born 10 December 1978) is an Italian rapper. He is called Meticcio (Mestizo) because his father is from Egypt and his mother is Italian. Discography Solo ca
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 0x4725084557d190854902c7a9e1d379ca2c6c7587859f14988d894cf115785a75. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84088813-2355-4f70-aa62-a553a45cd1bb.json and https://artists.proofprofile.net/proofs/artist/84088813-2355-4f70-aa62-a553a45cd1bb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).