Robert Lee Greene Jr. (born July 2, 1970), better known by his stage name Spice 1 (an acronym for "Sex, Pistols, Indo, Cash and Entertainment"), is an American rapper from Hayward, California. He bega
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 0x911ac907cd25ff4964f432c70410bd71f632997e489e1fd04b02e26320ac4829. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c874c6b7-83e7-44e6-84db-5baeb7cae400.json and https://artists.proofprofile.net/proofs/artist/c874c6b7-83e7-44e6-84db-5baeb7cae400.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).