Rubí or Rubi may refer to: Television , on Maha Cartoon TV Rubí (1968 TV series), a 1968 Mexican telenovela Rubí (2004 TV series), a 2004 Mexican remake of the original 1968 telenovela Rubi (Philip
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 0x3787f9b2e10d79b6e346760965cbb5f1e5f923e1f3c9ea5948308d376336217f. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebbad903-9785-47c7-a8c7-541401810ab4.json and https://artists.proofprofile.net/proofs/artist/ebbad903-9785-47c7-a8c7-541401810ab4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).