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 0xb6a1bfb38838b9778e5b5d31f5ccb5350d9df9e882f1cb27585f26fbfd177382. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a417415-f28a-4b38-91d1-5e3a64cb809f.json and https://artists.proofprofile.net/proofs/artist/5a417415-f28a-4b38-91d1-5e3a64cb809f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sanullim Vol. 2 - Spread Silk On My Heart
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027366099185a909f6673279bc6106dd92f42d8369ba39793c54cd99408a2d21. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1yDZuVCnVq1bpGnzHeZs7j.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1yDZuVCnVq1bpGnzHeZs7j.
내 마음 My Heart (내 마음은 황무지 My Soul Is a Wasteland)
Sanullim Children's Songs Vol. 1 - A Naughty Boy
어린이에게 보내는 산울림의 동요선물 제1집 Gifts for Children, Sanullim’s Children’s Songs (Volume 1)
예쁜 맘 예쁜 꿈 Beautiful Heart Beautiful Dream
특급열차 Express Train (속에서 The Ride Inside)
바람 부는 강 언덕 The Windy Hill by the River (Instrumental)
바람 부는 강 언덕 The Windy Hill by the River (Instumental)
The Windy Hill By The River - Instrumental
Sanullim Vol. 5 - An Hourglass In Midday
Sanullim Vol. 6 - Please Wait A Little Longer
Long Lost Memories Will Come To My Mind Vaguely Through The Window
나 그대의 넓은 대지가 되고져 Longing to Be Your Earth
창문 너머 어렴풋이 옛 생각이 나겠지요 Long Lost Memories Loom Beyond the Window
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ede9b4b3163b9e75b4c09813d77338a649eec590643ad17856cd55202142720. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4CCsJ6faP5NoZB9ifDYIEK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4CCsJ6faP5NoZB9ifDYIEK.
Sanullim Children's Songs Vol. 3 - What A Long Tail
Sanullim Children's Songs Vol. 2 - Mount Grandpa
어린이에게 보내는 산울림의 동요선물 제2집 Gifts for Children, Sanullim’s Children’s Songs (Volume 2)
봄, 여름, 가을, 겨울 Spring, Summer, Fall, Winter
어린이에게 보내는 산울림의 동요선물 제3집 Gifts for Children, Sanullim’s Children’s Songs (Volume 3)
이게 웬 긴 꼬리냐 Why the Long Tail (줄다리기 Tug of War)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54b08b98f5fc8c7e3603705ee95458a20519959e9d88a3af8604c3502c7c62a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0gcPXVGeO4KV6wbZ1zF1Vb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0gcPXVGeO4KV6wbZ1zF1Vb.
Sanullim Vol. 9 - Want to Keep Your Smiling Face
웃는 모습으로 간직하고 싶어 Want to Keep It As Smiling Memory
꿈이야 생각하며 잊어줘 Forget Me As If It Was a Dream
꼬마 인형에 날개를 달자 Let's Attach Wings to a Little Doll
가을이 오고 또 겨울이 오면 Autumn Arrives and Winter Follows
Sanullim Children's Songs Vol. 4: Songs Of Innocence
Sanullim Vol. 11 - Is It Raining on the Day You Leave?
You'll Be Surprised When I Make a Confession
그대 떠나는 날 비가 오는가 Will It Rain the Day You Leave
내가 고백을 하면 깜짝 놀랄 거야 If I Confess, You'll Be Totally Surprised
옷 젖는 건 괜찮아 Getting Drenched Doesn't Matter
Chinese Cabbage Flower and Buckwheat Flower
내가 왜 여기 있는지 몰라 I Don't Know Why I'm Here
내 마음은 황무지 My Heart Is a Wilderness (Live)
The Story Of Sanullim Complete Studio Recordings
My Heart (My Soul Is A Wasteland) - Kim Chang Wan, vocal 1996 Live
Silent Night Holy Night (from "X-Mas Carol")
Want to Keep Your Smiling Face / It Could Be - 1996 Live
The Story Of Sanullim: Complete Studio Recordings
웃는 모습으로 간직하고 싶어 / 그럴 수도 있겠지 (1996년 카페 '곰팡이' 라이브)
Sanullim Vol. 2 - Spread Silk On My Heart (2023 Remastered)
Spread Silk On My Heart - 2023 Remastered
A Flower Blooming In The Haze - 2023 Remastered
What Will Happen To Me - 2023 Remastered
Sanullim Vol. 6 - Please Wait A Little Longer (2023 Remastered)
Please Wait A Little Longer - 2023 Remastered
Before The Song Is Over - 2023 Remastered
Want To Be Your Extensive Grounds - 2023 Remastered
Long Lost Memories Will Come To My Mind Vaguely Through The Window - 2023 Remastered
A Still Life With Sunflowers - 2023 Remastered
Afternoon - Instrumental, 2023 Remastered
Sanullim Vol. 3 - My Heart (2023 Remastered)
My Heart (My Soul Is A Wasteland) - 2023 Remastered
Sanullim Vol. 4 - Express Train (2023 Remastered)
(In The) Express Train - 2023 Remastered
A Chorus Of Fledglings - 2023 Remastered
Will You Come In Autumn? - 2023 Remastered
Glass Doll - Instrumental, 2023 Remastered
Tomorrow And Tomorrow Again - 2023 Remastered
The Windy Hill By The River - Instrumental, 2023 Remastered
Sanullim Vol. 5 - An Hourglass In Midday (2023 Remastered)
An Hourglass In Midday - 2023 Remastered
Let’s Go To The Vineyard - 2023 Remastered
A Portrait Of A Lady Shaman - 2023 Remastered
Why Are You Leaving Me? - 2023 Remastered
Sanullim Vol. 1 - Already Now (2023 Remastered)
산울림 제2집 - 내 마음에 주단을 깔고 (2023 Remastered)
Sanullim Vol. 7 - Please Don't Go (2023 Remastered)
Tales from a Faraway Land - 2023 Remastered
Sanullim Vol. 9 - Want to Keep Your Smiling Face (2023 Remastered)
Want to Keep Your Smiling Face - 2023 Remastered
More and More and More - 2023 Remastered
Last TV Show Being Finished - 2023 Remastered
Sanullim Vol. 8 - Fly Away, Bird! (2023 Remastered)
A Strange Day Like This - 2023 Remastered
Don't Remember Clearly Now - 2023 Remastered
산울림 제9집 - 웃는 모습으로 간직하고 싶어 (2023 Remastered)
Sanullim Vol. 10 - Meaning of You (2024 Remastered)
Think It’s a Dream and Forget It - 2024 Remastered
Why Does the Earth Turn? - 2024 Remastered
Where the Sun Goes Down - 2024 Remastered
Sanullim Vol. 11 - Is It Raining on the Day You Leave? (2024 Remastered)
Is It Raining on the Day You Leave? - 2024 Remastered
The Road is Always Unfamiliar - 2024 Remastered
You'll Be Surprised When I Make a Confession - 2024 Remastered
If It’s Raining in the City - 2024 Remastered
It’s Okay to Get My Clothes Wet - 2024 Remastered
산울림 제11집 - 그대 떠나는 날 비가 오는가? (2024 Remastered)
Sanullim Vol. 12 - Uneasy Happiness (2024 Remastered)
The Place Where I'm Going to Go Back - 2024 Remastered
Chinese Cabbage Flower and Buckwheat Flower - 2024 Remastered
Where is My Older Sister - 2024 Remastered
Sanullim Vol. 13 - Rainbow (2024 Remastered)
I Don't Know Why I'm Here - 2024 Remastered
Let’s Ride a Motorcycle with a Guitar - 2024 Remastered
Thank You for Your Fax - 2024 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840a1920015d1fb131771c5547bcbf38249d6475173adb64412ea6a33016a471. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6F3VBC0GqhiIXELiimekKu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6F3VBC0GqhiIXELiimekKu.