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 0x4e762c9af9ab3b3767cae12b6476076ce026cf95bbf531e3d44ac152a452dcb5. 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/953ea98f-3804-46c9-b7d3-ff8c21cd50b0.json and https://artists.proofprofile.net/proofs/artist/953ea98f-3804-46c9-b7d3-ff8c21cd50b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x2f9d0979217d3340b22a8c0f4dba3d9144b192b17050262a17274751f0d072d6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/13L8QJB0ZiSYGF5EqBTFPs.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/13L8QJB0ZiSYGF5EqBTFPs.
LK Câu Chuyện Tình Tôi & Nửa Vầng Trăng - Remix
LK Câu Chuyện Tình Tôi & Nửa Vầng Trăng (Remix)
Lk Cau Chuyen Tinh Toi & Nua Vang Trang - Remix
Yêu Mãi Yêu/Còn Mãi Nồng Nàn (Version R&B)
Bức Tranh Tiền Kiếp (Đoạn Kết Cho Người Thay Thế)
LK Cau Chuyen Tinh Toi/ Nua Vang Trang (feat. Bao Han)
LK Cau Chuyen Tinh Toi/ Nua Vang Trang (feat. Bao Han) - Remix
Hai Năm Tình Lận Đận - Em Hiền Như Ma Soeur - Thà Như Giọt Mưa
Nhạc Tình Muôn Thuở 2/Yêu Cô Đơn Như Tình Nhân
Bức Tranh Tiền Kiếp (Đoạn kết cho người thay thế) [Beat]
Bức Tranh Tiền Kiếp (Đoạn kết cho người thay thế) - Beat
Đồng Xanh / Giàn Thiên Lý Đa Xa (Liên Khúc)
Liên Khúc Còn Lại Nỗi Cô Đơn - I'M In Love
LK Hai Năm Tình Lận Đận, Em Hiền Như Ma Soeur, Thà Như Giọt Mưa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f82f2d18b98d82b21c4f404599ce6ad699d5046ff5069df80a1e3d95827ed1. 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/4HWRCQsBhMM6iEU4H3GbYm.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/4HWRCQsBhMM6iEU4H3GbYm.
{"copyright_id":"0x91e5abee757a3e296d99cb8bd7f8ff79aa11756627fe13f6c0f254f15357bac9","isrc":"QM4TW2091315","name":"Chúc Xuân","registered_at":"2026-06-10T07:24:00Z","spotify_id":"3QXzeqKHFIOcxrEbmzomDp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e5abee757a3e296d99cb8bd7f8ff79aa11756627fe13f6c0f254f15357bac9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3QXzeqKHFIOcxrEbmzomDp.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/3QXzeqKHFIOcxrEbmzomDp.
{"copyright_id":"0x9cd94adedf862fae5259816cd57f8090841be57228c2d71eeb8ec4205a216958","isrc":"QM48F1048011","name":"Trọn Kiếp Bình Yên","registered_at":"2026-06-18T22:15:08Z","spotify_id":"4JE3qwOdaVcQTUvA5FhqLN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd94adedf862fae5259816cd57f8090841be57228c2d71eeb8ec4205a216958. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4JE3qwOdaVcQTUvA5FhqLN.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/4JE3qwOdaVcQTUvA5FhqLN.
{"copyright_id":"0x1e4e7b3e3e83f0cac43526cebdb6227a0175fd359ed60e6c211355aceb53b7e3","isrc":"QM48F0842707","name":"LK Câu Chuyện Tình Tôi & Nửa Vầng Trăng","registered_at":"2026-06-22T13:42:40Z","spotify_id":"2lBYggh48kHBfeZJJX0eMj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4e7b3e3e83f0cac43526cebdb6227a0175fd359ed60e6c211355aceb53b7e3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2lBYggh48kHBfeZJJX0eMj.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/2lBYggh48kHBfeZJJX0eMj.
Bước Chân Chiều Chủ Nhật & Đêm Lang Thang
{"copyright_id":"0x145c2f40a93e2f17902bd7cf007d989d1b33db34017fd74d8672b8d8be528c8b","isrc":"VNA0F2322605","name":"Mashup 10 Năm - Tôi Đưa Em Sang Sông","registered_at":"2026-06-11T03:32:07Z","spotify_id":"4R0HM1eim7SvG5OjpAPW5K","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145c2f40a93e2f17902bd7cf007d989d1b33db34017fd74d8672b8d8be528c8b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4R0HM1eim7SvG5OjpAPW5K.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/4R0HM1eim7SvG5OjpAPW5K.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8e310f8346ecd5874789a7602e96f60eeb4d5d5a13ef3a6b7066d43ac1f7d7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6iA6Yczkd8x5iPrBcJNx7Q.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/6iA6Yczkd8x5iPrBcJNx7Q.