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 0xcae39bdc800aabd16dc5b7a6ce000619b4b1a461cf1ed5131c4dc025cf79412d. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2bfcb0c5-7cef-452d-b31e-103d14f9498d.json and https://artists.proofprofile.net/proofs/artist/2bfcb0c5-7cef-452d-b31e-103d14f9498d.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 → block OTSBitcoinBlock must exist at that height 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 0x427898829e11dca9bd9b90adb4c641eb248d1f62d60802531d24db98da4d816a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/VNA0F2315808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd37d1b7c89f96c3b95aa26ef87b028bd13d4763dabef6634a9b6bc0edbef39. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/VNA0F2315765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11be64cd5ac2399e98702164a766d8fbe9d3fc6fa22c18db7c09abd2800166cf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZWBE2338639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cefaa9f19ca017a961de546980f11801cdcaa65785c0577e4501018e75a55f. 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/VNA0F2113167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbae7330a86e9e9a8a19be6710c144f1febad208b5bf79e38345caaf0f1f1f2. 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/QM4TX2361961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e76814f8fba5412057555dd492faabd56165498896347451371aae73b8d418. 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/QM4TX2361982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200250965ea4b9fc9189549741bd2886ce8480a4e49bab9f73f2af5b6a5b611d. 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/QM4TX2362002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a012a1a10b7e44df8233da460047df19b6e5c42dae12454ba14456213da7c54. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM4TX2362049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1655fbdedf9676db13864cb9fe32ee9f9a34026c892dd1f7dabef15b0505e846. 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/QM4TX2362043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6f2f81eb9159224d1d6099f82933ed2ec1916e5cc83d4603a9b994de1df14c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX2362119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dab871db73e76ba9b1fd685c9550ebe2612968eb5d13fcf1d98ce4d0a1cb68. 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/QM4TX2362141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bb3bd460f031e8a4d16fe67f134180bb3109527d09a52ab8b10341c0ddb490. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM4TX2362171.
Là Anh (DPhong x T-Bin Lofi) - Instrumental
Là Anh (DPhong x NPROX Lofi) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3af97aa2f3658de3559df8ebb734b62655bf7597fdca4943b846f496d0a25c2. 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/QM4TX2396445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2231b31b68b74daa800eafb97872c5a3b16d575f7750af38173245f320e0e67. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM4TX2396477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31b66a328e84b9d4fc842712a9ed41cac0ba82044c287c1c5e895157e7b9b53. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QM4TX2396485.
Là Anh (Speed Up Version) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf918706dec7d5daecc34b43dbe64dc7f4c92726178bf97a8771bb9c1afdb644. 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/QM6MZ2323594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77076c6ba35a9cc4170704e6ef64e3c9c84c5ecb7ba69299d871261503ea2b9. 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/QM6MZ2323648.
Anh Là Ai? (feat. Dick, DT, UMIE & Thanh Huyy)
Kéo Em Về Làm Vợ (feat. Double2T & CilTee)
Từ A Đến Z (feat. 24k.Right & Nhựt Trường)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725c05ba1212cd34998c1179d5c5f7b08685de9fffe840601cccdf3514127286. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US38Y2417265.
Baby Gọi Cho Anh (feat. CAPTAIN, UMIE & Thanh Huyy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebc4951ba3afddf6e668a92cc6add164123ecc1be1c11209e5ffff953e8f5ce. 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/US38Y2417266.
Anh Là Ai? (feat. Dick, DT, UMIE & Duzme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d5f2a6c9b70ec3772f63c3bf2be0c0f987a703937e1b1e38fac8252814c64f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US38Y2417268.
Baby Gọi Cho Anh (feat. CAPTAIN, UMIE & TB)
Từ A Đến Z (feat. 24k.Right & Thanh Huyy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145f87498f47e3c6d502dc435df59233f1b809e27d042e38904b32928c0c92b1. 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/US38Y2417269.
Anh Là Ai? (feat. Dick, DT, UMIE & Hoàng LV)
Khi Cơn Mơ Dần Phai (feat. Tez, Myra Trần & Hoàng LV)
Nhạc Cho Mẹ (feat. Mikelodic & Hoàng LV)
Kéo Em Về Làm Vợ (feat. Double2T & Nhựt Trường)
Người Miền Núi Chất (feat. Double2T & Nhựt Trường)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721ec2ef2745f0eae5c4c018e66096fda0202a2ca31f8d9e1bd62e351d05aeeb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US38Y2417276.
Từ Chối Hiểu (feat. RHYDER & Duzme) - Remix
Baby Gọi Cho Anh (feat. CAPTAIN, UMIE & Duzme)
Kéo Em Về Làm Vợ (feat. Double2T & Hoàng LV)
Nay Mai (feat. Minh Lai, Shorty Thang & Hoàng LV)
Money Dream (feat. Dlow, STRANGE H & CilTee)
Một Công Đôi Việc (feat. HURRYKNG, HIEUTHUHAI & CilTee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6067799a0b60e11024c1718c249bdcd46017380df6ca8b08f687f366569d962. 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/US38Y2417283.
Take It Easy (feat. Liu Grace & Hoàng LV)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad0ca5e7e69627538c1675bab719a4faad333d6b11525359a72530989bd8b31. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US38Y2417285.
Truy Lùng Bảo Vật (feat. 24k.Right, Sofia & Hoàng LV)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d78f7c26c32037e5b26a88645e3fba81774cc8f16c6cc70ffe6404074a9497. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US38Y2417287.
Huhu Haha (feat. SMO, Lil'Wuyn & Hoàng LV)
Anh Không Cố Ý (feat. Limitlxss, Ogenus & TB)
Ổn Không, Brô (feat. 24k.Right, Yuno Bigboi & Hoàng LV)
Có Nhiều Cái Khó Nói (feat. Liu Grace & Hoàng LV)
Sống Cho Hết Đời Thanh Xuân 4 (feat. Dick & Hoàng LV)
Hổng Có Ưa (feat. Pháp Kiều, Snoop Dee & Nhựt Trường)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d2f049a62f6426d576a8d79d5718d31ef5442aa3922ba71c59ea4bbc08be40. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US38Y2417294.
Enjoy Cái Moment Này (feat. Tez, Anh Tú, Vũ Thảo My & Nhựt Trường)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82a6afa0abfbf114c98636b24c79078d25beaacf399d39a8f6b5d1cb8c7202f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US38Y2417296.
Ai Cũng Có Thể Là Quán Quân (feat. Dick, Bùi Công Nam & Hoàng LV)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0646585c0282f2933b877a6dc861cb3194a3b2c7978cbc202c94b8f608cf7e2d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US38Y2417295.
Khi Cơn Mơ Dần Phai (feat. Tez, Myra Trần & Duzme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7574f39b7c356895515d56e0de1257a77eb18fb429a6edc9a93790b0a654e78. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US38Y2417297.
Anh Không Cố Ý (feat. Limitlxss, Ogenus & CilTee)
Lối Đi Riêng (feat. Pháp Kiều & Hoàng LV)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc58dd701bbdca3ac1597fbedff95fb4534e76dc322c2052b12910bcce6396a2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US38Y2417300.
Thầy Bói Xem Voi (feat. DT, KymLeez & Thanh Huyy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc81b00a4ac14e2ee0860d51f7250f0fce35c97442e657234179fde0f5fce257. 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/US38Y2417299.
Khum Hề Giả Trân (feat. gung0cay & Hoàng LV)
Có Làm Mới Có Ăn (feat. Long Nón Lá & Hoàng LV)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc972a08db631bc19d1871a248d5fb7a3c5f4c4c7297c43f544b27a7eb4e0c8a8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US38Y2417305.