Pius ( , ; ) is a masculine given name. Its feminine form is Pia. It may refer to: People Monarch Antoninus Pius (86–161), Roman emperor Popes Pope Pius (disambiguation) Antipope Pius XIII (1918
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 0x87c8a305e59d1cafd31e9967febee050acfbca07f908dea5b5f4328a834a098b. Chain 2 (Bitcoin): anchored in block 954025 (2026-06-17T00:32:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38225c11-9c36-4a0a-9c3a-3d19d55371a0.json and https://artists.proofprofile.net/proofs/artist/38225c11-9c36-4a0a-9c3a-3d19d55371a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).