Mellow & Sleazy is a South African duo composed of Phemelo Sefanyetse, and Olebogeng Kwanaite formed in 2020. "Chipi ke Chipi" with Justin99 was released on April 15, 2022. It debuted number 9 on Loc
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 0xe0e593f883125484f4b7f57e6cb9720a5da32c22709b78b4c9966e33ba2007c4. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2cc492fc-09ae-43c2-887d-0e0e0f129cb1.json and https://artists.proofprofile.net/proofs/artist/2cc492fc-09ae-43c2-887d-0e0e0f129cb1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).