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 0x4bd5c80ae181cef2a2f60a6e64493676bd65d781be91e49adc86d9f5f20f3a33. 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/86a26474-01dc-48c0-bbf2-4ddfdcdd48ad.json and https://artists.proofprofile.net/proofs/artist/86a26474-01dc-48c0-bbf2-4ddfdcdd48ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
POP #4 (A Journey Through Time & Emotions)
k-Jazz 감성 시리즈 #4 : "k-Jazz와 함께 걷는 마음의 풍경"
k-Jazz 감성 시리즈 #6: "Summer Jazz Diary, 여름을 그리다"
감성 Ballad 시리즈 #2 "Letters I Never Sent : 편지로 남긴 마음"
감성 Ballad 시리즈 #3 "Café Mood Notes : 카페 무드 노트"
감성 Ballad 시리즈 #5 That Summer, That Song: 그 여름, 그 노래
감성 Ballad #7 여름을 닮은 노래들(Songs that Taste Like Summer)
감성 발라드 #8 First Breeze - 시원하고 청량한, 여름의 감정들
감성 Ballad 시리즈 #9 Stained by Summer(여름에 물들다)