PG, P.G., P&G, pg, or Pg, or similar, may refer to: Parental Guidance (PG), a content rating in the following motion picture content rating systems and television content rating systems: Australian
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be05751b9d72e2362878b25f5210423a2b1c73d97944c765f26619ea03a9d50. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0916fa17-1706-4b00-8be8-125bdd36a8db.json and https://artists.proofprofile.net/proofs/artist/0916fa17-1706-4b00-8be8-125bdd36a8db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).