Rana may refer to: Astronomy Rana (crater), a crater on Mars Delta Eridani or Rana, a star Films Rana (2012 film), an Indian action drama Rana, a 1998 Indian film directed by A. Kodandarami Reddy
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 0xc84152ed224d3decb682defb3b5ec1da4ae20917b2dac1ea2b10502e3eceb1e3. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ac656d6-0740-4b0e-9501-b37a0a68bd83.json and https://artists.proofprofile.net/proofs/artist/5ac656d6-0740-4b0e-9501-b37a0a68bd83.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).