Black Vulcanite is a rap group based in Windhoek, Namibia. The group was formed in 2013 by Mark Question, AlithatDude, and Okin. After they released their EP Remember the future in 2013, the group was
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 0x503701d280ccea211cc396ae838be468333f74c3e8ed9fa385be9f14f0d4d51d. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fec2af2d-bca4-4a8e-b59b-245ddc6b42ed.json and https://artists.proofprofile.net/proofs/artist/fec2af2d-bca4-4a8e-b59b-245ddc6b42ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).