Diego Martin () is a town and is the urban commercial center and capital of the Diego Martin region in Trinidad and Tobago. Its location in the region is just on the south eastern border, west of the
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 0x431bf0f0412c77981dc9fa6be05fc4300256ec17900908e9b151d29021730f52. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b0a28f7-b940-4fdf-b070-62a7eccbc709.json and https://artists.proofprofile.net/proofs/artist/9b0a28f7-b940-4fdf-b070-62a7eccbc709.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).