Wasiem Taha (), better known as Massiv (born 9 November 1982), is a German gangsta rapper, Twitch streamer, YouTuber, and actor. He began his career in 2004 under the stage name Pitbull, but changed i
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 0x3c2ea92f15ce1239d3f9e038f66d0d4fdc6067c3931a813521d0797847f44b67. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91d2fc57-176e-4f6f-ae7a-9593c8ccafbb.json and https://artists.proofprofile.net/proofs/artist/91d2fc57-176e-4f6f-ae7a-9593c8ccafbb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).