Prema may refer to: Film Prema (1952 film), an Indian Telugu-language film Prema (1989 film), an Indian Telugu-language film, starring Venkatesh and Revathi Prema (2002 film), an Indian Kannada-langu
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 0x2a3ab2d285b904546f9216b90e8d0bb9861ddc043a5c3827cf05cad7218e6bfe. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5f3ce93-3ec5-4082-a077-5aa00eccbc09.json and https://artists.proofprofile.net/proofs/artist/b5f3ce93-3ec5-4082-a077-5aa00eccbc09.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).