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 0x6b22bc216291784e6400acd14a776fc0b08885fb376418be02422658d79e2d4c. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e702e40c-ed9b-457c-8fbb-a2c68f41b630.json and https://artists.proofprofile.net/proofs/artist/e702e40c-ed9b-457c-8fbb-a2c68f41b630.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x7782ed60be45546b51e8b2f395168587f271ed58c06e27886af14152e72c71b0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZYHM2336590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50606bfd814f869958d86063952cd6297931b5b1c315fee219073247e9755be7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US38Y2412841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbcc3a3517dd25090806930e0ca61ec9f48718626db9dee302684134a919b70. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:12:54Z), 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/QM6N22472636.
Kìa Giàn Bầu Giàn Bí Nó Đung Đưa Remix - Thương Em Dữ Chưa (ChungQ Remix)
Ngoài Đồng Cây Lúa Chín Vàng Trổ Bông Remix - Thương Em Dữ Chưa (MUS Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0261b2e54e10dbb94a35ba8b5fc0304480a8305304a20aed16865a9e36469da0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/VNA1M2282468.
Là Em Cô Gái Quê Đôi Mươi Đẹp Xinh Hai Má Ửng Hồng - Ưng Thì Nói (Speed Up Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428f0c36f1c843ec1bcbc7692fb470ac0368e5f50bb97eb49f93d0b6e7ed0a9b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZYHM2400931.
Ưng Thì Nói - Mà Anh Ơi Nếu Anh Có Ưng Tính Em Có Hơi Tứng Tưng (TIKA Remix)
Là Em Cô Gái Quê Đôi Mươi Đẹp Xinh Hai Má Ửng Hồng - Ưng Thì Nói (MUS Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c91c37b28fec825355235b93f7b6188e112f4313e11261efccc9fc78ffb8011. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/VNA0F2320247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a3d1e012684ce39d9356b6d1882805d71b135e490bc82fe354e20be1907424. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZYHM2375615.
Ưng Thì Nói (Lofi .Ver) - Nếu Anh Có Thương Thì Thương Cho Thiệt Lòng
Ưng Thì Nói (DORI Remix) - Rap Hoa Tỏa Nắng Mới Nguyên Cả Cánh Đồng Remix
Ưng Thì Nói (DORI Remix) - Mặn Mà Thiếu Nữ Vùng Quê Áo Dài Nón Lá Phấn Son Vụng Về Remix