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 0xe962db0c91553e94626eb7a0a064257081aeaff2d943ece7c1a0b98fd8e35b9e. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d638b683-18e1-4eec-aee7-c39d92923317.json and https://artists.proofprofile.net/proofs/artist/d638b683-18e1-4eec-aee7-c39d92923317.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
머리 어깨 무릎 발 (Head Shoulders Knees & Toes)
야구 경기장 가자 (Take me out to the ball game)
잘자라, 우리 아기 (All the little pretty horses)
달에서 온 여행자 (The Man in the Moon Came Down Too Soon)
스카우트 행진곡 (When the scouts go marching in)
친구들아, 나가놀자 (Girls and boys come out to play)
멍멍 개가 짖네 (Hark!, Hark! The Dogs Do Bark)
메기의 추억 (When you and I were young Maggie)
신발에 사는 할멈 (Old woman who lived in a shoe)
높은 산 넘어 (The bear went over the mountain)
쿵쿵, 즐거운 것은 멋져! (Boom boom ain't it great to be crazy)
친구야 놀자 (Playmate, Come out and Play with Me)
귀여운 저 강아지 (How much is that doggy in the window)
온 세상이 종이라면 (If All the world were paper)
요미몬 마더구스 Vol.1 (Yomimon Mother Goose Vol.1)
요미몬 마더구스 Vol.2 (Yomimon Mother Goose Vol.2)
겨울숲 (Over the river and through the woods)