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 0xa761eb00614e0c6c23494e3a33b62c1ab211aac51bf908868590655d466c3c58. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a35d9a2b-ed70-49f5-a259-81490c351635.json and https://artists.proofprofile.net/proofs/artist/a35d9a2b-ed70-49f5-a259-81490c351635.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hòa Nhịp Giáng Sinh - Nguyen Hoan Remix (Instrumental)
Tình Đơn Phương (ĐQ Remix) [Istrumental]
Từ Cửu Môn Hồi Ức (JOHANN Remix) [Istrumental]
Trót Trao Duyên (ĐQ Remix) [Istrumental]
Xa Anh Chậm Thôi (ĐQ Remix) [Istrumental]
Những Lời Dối Gian (ĐQ Remix) [Istrumental]
Một Tình Yêu Hai Thử Thách (ĐQ Remix) [Istrumental]
Track 06 x Nơi Này Có Anh (Qiz x Cuonwgf Remix) [Istrumental]
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac45d5d718a20fc0fb536aa6a6d1896196f33699753589b554c779241a12a63. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:07:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2411811.
Tử Cửu Môn Hồi Ức (ĐQ Remix) [Istrumental]
Yêu Thật Khó Xóa Thật Đau x Nhìn Em Lần Cuối
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258a8d8fa66f9d68e931f94e3562c3e1582c73df6e43d60176d26c752c6b7c9c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2501099.