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 0xf7e8a02d7468c2f7624b92398fcec27f071ebc98adcdee3c09dd4cd5d727b0b1. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/885760ad-bb78-4b5b-a84e-15046b52255d.json and https://artists.proofprofile.net/proofs/artist/885760ad-bb78-4b5b-a84e-15046b52255d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
SSB Vol. 14 (កិន្នរចិត្តយក្ស)
SSB Vol. 17 (ឃ្លានឆ្ងាញ់ស្រឡាញ់ល្អ)
បញ្ឈប់ស្នេហ៍ត្រឹមអូន (KH Vol. 137)
ស្រឡាញ់អ្នកមិនគ្រប់គ្រាន់ (KH Vol.145)
ចិញ្ចៀនចងស្នេហ៍ (SSB, Vol.11)