Boxer most commonly refers to: Boxer (boxing), a competitor in the sport of boxing Boxer (dog breed), a breed of dog Boxer or boxers may also refer to: Animal kingdom Boxer crab Boxer shrimp, a sma
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 0x7d4fa767b7a5d534dd5d4b453dc337b68823c8d774c2b7f58185a456d7705886. 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/07882fdb-f85b-480f-8703-1c364b193b3d.json and https://artists.proofprofile.net/proofs/artist/07882fdb-f85b-480f-8703-1c364b193b3d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).