Husan () is a Palestinian town located west of Bethlehem, in the Bethlehem Governorate. According to the Palestinian Central Bureau of Statistics, Husan had a population of 7,048 in 2017. Husan is l
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 0x8a92e868089c7f3f0400ffdaf811233700c67b0b27651a1a88a1973dc8c627a6. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97517a42-7d42-4f6a-bf1f-347096564ad1.json and https://artists.proofprofile.net/proofs/artist/97517a42-7d42-4f6a-bf1f-347096564ad1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).