Phil may refer to: Phil (given name), a shortened version of masculine and feminine names Phill, a given name also spelled "Phil" Phil, Kentucky, United States Phil (film), a 2019 film Philippin
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 0xac5cedbfdf3621b677d6f31e5af827bac053ce12352d83b83721807cf7d76473. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e27daf48-3a11-470c-90bc-6c680704a355.json and https://artists.proofprofile.net/proofs/artist/e27daf48-3a11-470c-90bc-6c680704a355.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).