1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x5bbce2732c4a156ac1f667b15a4d3548a08f99ea7dfaeb29327660415261b668. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f07a65d9-e3bd-4e9e-b5d1-97b70876e91d.json and https://artists.proofprofile.net/proofs/artist/f07a65d9-e3bd-4e9e-b5d1-97b70876e91d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Children's Songs for Kindergarten and Daycare Center - (Living Tools)
Children's Songs for Kindergarten and Daycare Center - (Concept of music)
Children's Songs for Kindergarten and Daycare Center - (Plants, Animals and Nature)
Children's Songs for Kindergarten and Daycare Center - (Movement and Word Game)
Children's Songs for Kindergarten and Daycare Center - (Spring, Summer, Autumn and Winter)
Children's Songs for Kindergarten and Daycare Center - (Family & I)
Children's Songs for Kindergarten and Daycare Center - (Health & Safety)
Children's Songs for Kindergarten and Daycare Center - (Transportation)
Children's Songs for Kindergarten and Daycare Center - (Fundamental habit)
Children's Songs for Kindergarten and Daycare Center - (Kindergarten & Friends)
엄마 아빠가 함께 배우는 토닥토닥 태교동요 Prenatal Songs for Parents and Babies
가슴속에 담아둔 그 말 The Words I Keep in My Heart
빙글뱅글 세탁기 Round and Round Washing Machine
마음을 맑게하는 힐링동요 Songs That Lead to Childhood Innocence
Children's Song Recital with accompaniment
The Words I Keep in My Heart - Instrumental
Sounds That Spring is Coming - Instrumental
Children's Songs for Kindergarten and Daycare Center [Accompaniment Ver. (Instrumental)]
Sounds that Spring is Coming - Instrumental
Round and Round Washing Machine - Instrumental
Twinle, Twinkle, Little Star - Instrumental
Children's Songs for Kindergarten and Daycare Center - (Picture Books)
A Fish Trip (The Rainbow Fish - Marcus Pfister)
Elephant! (Seven Blind Mice - Ed Young )
Children's Songs for Kindergarten and Daycare Center - (Our neighborhood)
Popular and rhythmic songs with Music Drawing Paper
봄여름가을겨울 메들리 Medley for Spring, Summer, Autumn and Winter
세탁기와 건조기 Washing Machine and Dryer (Instrumental)
악기소리 Musical Instrument sounds (Instrumental)
봄여름가을겨울 메들리 Medley for Spring, Summer, Autumn and Winter (Instrumental)
생활주제(우리나라)별 유치원·어린이집 필수동요 Children's Songs for Kindergarten and Daycare Center - (Korea)
생활주제(세계여러나라)별 유치원·어린이집 필수동요 Children's Songs for Kindergarten and Daycare Center - (Countries Around the World)
고마워 세계의 친구야 Thank You, Friend of the World
생활주제(환경과 생활)별 유치원·어린이집 필수동요 Children's Songs for Kindergarten and Daycare Center - (Environment and Life)
전기차 충전소 Electric Vehicle Charging Station
생활주제별 유치원·어린이집 필수동요 Children's Songs for Kindergarten and Daycare Center (반주 MR Accompaniment Version, Vol. 2)
거미가 줄을 타고 올라갑니다 The Itsy Bitsy Spider (Instrumental)
고마운 가로수 A Grateful Street Tree (Instrumental)
고마워 세계의 친구야 Thank You, Friend of the World (Instrumental)
구름 공항 Sector 7 (데이비드 위즈너 David Wiesner) [Instrumental]
당신은 누구십니까 What's Your Name? (Instrumental)
동대문을 열어라 Open the Dongdaemun Gate (Instrumental)
리듬악기 놀이 Rhythmic Instrument Play (Instrumental)
맑은 물이 좋아요 I Like Clean Water (Instrumental)
머리 어깨 무릎 발 Head, Shoulders, Knees and Toes (Instrumental)
무지개 물고기 The Rainbow Fish (마르쿠스 피스터 Marcus Pfister) [Instrumental]
물고기 여행 A Fish Trip (무지개 물고기 The Rainbow Fish - 마르쿠스 피스터 Marcus Pfister) [Instrumental]
미용실 가면 When I Go to a Hair Salon (Instrumental)
바람을 느낄 수 있어요 I Can Feel the Wind (Instrumental)
버스야 달려 The Wheels on the Bus (Instrumental)
붕어빵 아저씨 Mr. Fish-shaped Bun (Instrumental)
생일 축하 노래 Happy Birthday to You (Instrumental)
세계 여러 나라의 집 World Traditional House (Instrumental)
세계의 인사말 Greetings of the World (Instrumental)
신기한 옛날 물건 A Curious Traditional Tools (Instrumental)
우리 엄마 My Mum (앤서니 브라운 Anthony Browne) [Instrumental]
우리나라 옛날 집 Traditional House in Korea (Instrumental)
우리동네 치과 My Neighborhood Dentist (Instrumental)
이상한 화요일 Tuesday (데이비드 위즈너 David Wiesner) [Instrumental]
잭과 콩나무 Jack and the Beanstalk (Instrumental)
전기차 충전소 Electric Vehicle Charging Station (Instrumental)
즐거운 올림픽 Exciting Olympics (Instrumental)
지구가 아프대요 The Earth Is Sick (Instrumental)
추운 나라, 더운 나라 Cold Country, Hot Country (Instrumental)
코끼리야! Elephant! (일곱 마리 눈먼 생쥐 Seven Blind Mice - 에드 영 Ed Young) [Instrumental]
Children's songs based on Nuri Curriculum(Physical Exercise and Health)
Children's songs based on Nuri Curriculum(Social Relations)
누리과정 영역별(자연탐구)동요 Children's Songs Based On Nuri Curriculum (Nature Exploration)
누리과정 영역별(의사소통)동요 Children's Songs Based On Nuri Curriculum (Communication)
이상한 화요일 Tuesday (데이비드 위즈너 David Wiesner)
무지개 물고기 The Rainbow Fish (마르쿠스 피스터 Marcus Pfister)
물고기 여행 A Fish Trip (무지개 물고기 The Rainbow Fish - 마르쿠스 피스터 Marcus Pfister)
일곱 마리 눈먼 생쥐 Seven Blind Mice (에드 영 Ed Young)
코끼리야! Elephant! (일곱 마리 눈먼 생쥐 Seven Blind Mice - 에드 영 Ed Young)
Children's Songs Based on Nuri Curriculum (Art Experience)