Renna may refer to: Renna, Chinese for Mimana, Korea John Renna (1920–1998), American Republican Party politician Bill Renna (1924–2014), outfielder in Major League Baseball from 1953–1959 Stacie Lyn
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 0x05c06e502a5475ac62f3eca74e881f7e7109438b660c4bf6d93c1f25a31ccfbb. 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/db2ef101-2905-4e72-bdb3-8888f8a3aa7f.json and https://artists.proofprofile.net/proofs/artist/db2ef101-2905-4e72-bdb3-8888f8a3aa7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).