Salmin Kasimu Maengo (born 9 May 1996)popularly known by his producer-artist name S2KIZZY, is a Tanzanian record producer and songwriter. He is best known for producing Bongo Flava songs "Amaboko" and
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 0x55ca51ab329b8691f1016ee39e9de0349ed81f147da7930d23487d7073a9feb5. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7842cdc-ee03-49d2-bd73-a0b7b0e20e84.json and https://artists.proofprofile.net/proofs/artist/e7842cdc-ee03-49d2-bd73-a0b7b0e20e84.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).