Razer may refer to: People Greg Razer, American politician Helen Razer (born 1968), Australian radio presenter and writer Fictional characters Razer, a character in SWAT Kats: The Radical Squadro
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 0x91853ef5c81d1d54ced70f3c3e6ce893110af12e6607da1b5ae1af03984f2f6d. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5d2149c-793e-4fb8-85f8-0583ffe6fe72.json and https://artists.proofprofile.net/proofs/artist/b5d2149c-793e-4fb8-85f8-0583ffe6fe72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).