Phileas can refer to: Phileas (public transport), in the Netherlands Phileas Fogg, the lead figure from Around the World in Eighty Days Phileas Fogg snacks, in the United Kingdom Phileas and Phil
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 0x58bf275aad2bd49bd0f01120d468dec1cda77cc53394db2ba8ae90827b19e201. Chain 2 (Bitcoin): anchored in block 953955 (2026-06-16T14:29:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/268a853a-7861-421e-ae07-56a8774edbb4.json and https://artists.proofprofile.net/proofs/artist/268a853a-7861-421e-ae07-56a8774edbb4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).