Pippa may refer to: Pippa (given name) Pippa Bacca (1974–2008), performance artist Kelly Ripa (born 1970), nicknamed Pippa, American talk show host Pippa (film), a 2023 Indian film Fictional ch
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 0x4e75964e16e38dbaa705a6d7b8124bea033af240b71f25aa53d2bb7760962db5. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1efb6f7e-f1b5-47d6-a8b0-8675f0612e92.json and https://artists.proofprofile.net/proofs/artist/1efb6f7e-f1b5-47d6-a8b0-8675f0612e92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).