Bizimana Aboubakar Karume (born 7 December 1989), better known by his stage name SAT-B, is a Burundian musical artist and performer. Sat-B is the CEO of Empire Avenue, a music management label. Histo
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 0x6a9deee3801873a1fc9de76c0af575ca4f23ad239361ccb662ef687da072b8df. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17363e3e-82b6-431d-8eb2-0afc38d71039.json and https://artists.proofprofile.net/proofs/artist/17363e3e-82b6-431d-8eb2-0afc38d71039.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).