The Ghetto Twiinz is an American hip hop duo from New Orleans, Louisiana, composed of twin sisters Tonya and Tremethia Jupiter. From 1995 to 2001, the women released four albums, all of which made it
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f8d00dcca502d2785a196975376b25d5cdc7e09afa330477a4ff762e31ceea. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/afc2da03-907f-4fc2-9830-eb7ba4365740.json and https://artists.proofprofile.net/proofs/artist/afc2da03-907f-4fc2-9830-eb7ba4365740.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).