A harness is a looped restraint or support. Specifically, it may refer to one of the following harness types: Bondage harness Child harness Climbing harness Dog harness Five-point harness, a typ
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 0xceedf5022fd3768b3040dc094fb7c8832d24b9429f50a4c3424e5325911c0a88. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d2d6764-4aea-4a60-b6a3-1fc1522dbc94.json and https://artists.proofprofile.net/proofs/artist/9d2d6764-4aea-4a60-b6a3-1fc1522dbc94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).