Henry Green-Dupré, known by his stage names of Yvon Krevé and Von Von le Vet, is a French Canadian hip hop artist of Haitian origin. Krevé was rose to notice following collaborations with the duo Sans
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 0xb9d7159f34a2c764b0758743fc98500f8cdaa159fbc6f469646979b3e41d4ecb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5df43c69-e94d-482d-95b6-84409f6e9606.json and https://artists.proofprofile.net/proofs/artist/5df43c69-e94d-482d-95b6-84409f6e9606.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).