PW may refer to: Arts and media PW (rapper) (born 1992), English hip-hop artist Metal Gear Solid: Peace Walker, a 2010 video game Pauly-Wissowa, a short name for the Realencyclopädie der classisch
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 0xd615b41ff2909e6a3dce028112d7c7bf817d2c07dfb908995173417b95b2449b. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84300a23-1ba3-4557-bc2b-26110bfd3258.json and https://artists.proofprofile.net/proofs/artist/84300a23-1ba3-4557-bc2b-26110bfd3258.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).