Tabasco, officially the Free and Sovereign State of Tabasco, is one of the 32 federal entities of Mexico. It is divided into 17 municipalities and its capital city is Villahermosa. It is located in s
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590f029543d6c2b72cbcf8b36cd4a7cf62a6c09142a6cb951281a6b265962b61. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b021210-2081-4063-a8ed-74592a77cb12.json and https://artists.proofprofile.net/proofs/artist/2b021210-2081-4063-a8ed-74592a77cb12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).