Don Pao () is a tambon (subdistrict) of Mae Wang District, in Chiang Mai Province, Thailand.Thaitambon.com , Accessed April 30, 2010 In 2005, it had a population of 7,196 people. The tambon contains
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 0x0e74b8dc5fb7b0573df6441f1e5b87378c90d5705fb4e2e14875b3fbd9ab3617. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0d3bfe5-0109-4d1b-9179-84ce5db3a6a4.json and https://artists.proofprofile.net/proofs/artist/a0d3bfe5-0109-4d1b-9179-84ce5db3a6a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).