Mpho Sebina (m̀.pʰɔ́ sìbínà; born 18 July 1989) is a Motswana singer and songwriter. Her music spans various genres, including soul, R&B, Jazz, Hip-Hop, Tswana folk music, and Afro-fusion. Apart from
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 0xe3cf4fb051d9b4f692c1241fabd73ce504b89eab2ff095619c51e622ae8d4de5. 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/9081e121-ddac-4a73-8851-b3a39a61ccfa.json and https://artists.proofprofile.net/proofs/artist/9081e121-ddac-4a73-8851-b3a39a61ccfa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).