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 0x311ab5eb24191afa0f7ca7ab1d16ffefd239cc6a06bff3d605d8e4b9a2815819. 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/011ba6a8-edf0-4734-b1fc-ec9d1b730570.json and https://artists.proofprofile.net/proofs/artist/011ba6a8-edf0-4734-b1fc-ec9d1b730570.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 0x16f2e7e966549871e185bc5dfa2935d8d644cfb9a9f2440d7e5016c8a1c2c675. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/VNA0M1922174.
Nhánh Hoa Hồng Dại (H2K1 x HHD Lofi Remix)
Nhánh Hoa Hồng Dại (VisconC x HHD Remix)
Nhánh Hoa Hồng Dại (HiepDoA x HHD Remix)
Nhánh Hoa Hồng Dại (Thanh Huyy x HHD Remix)
Nhánh Hoa Hồng Dại (NiNef x HHD Lofi Remix)
NHÁNH HOA HỒNG DẠI (DARLING x SUGAR BABY REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a9ac0b7573e571f65262abb5435ea04a74b2fd0c0123743d59c0fefd0c2107. 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/VNA0F2115710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b08f2846882e9e76f1fc001103bb02d8a34e1c379a86c4063fc7b4460373658. 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/VNA0F2115711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d27c30f0beea380bdefab7055f187fc41e1f97451c3dc49df35fc12d392a99. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/VNA0F2115709.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Tấm Lòng Son (Đại Mèo Remix) [Version 2]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9844f27a3f2e5090911c5e1953ef8beab947d0b9bced0a1ae863b335fe15323c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ972316821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2224ca1c5489433a86f05f47264193a827a152abd29abdf3ff8559ca5260bf0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/VNA1M2285172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4240659934955587a5988f9e0fc4a0f0c6e0ac2481e36e0175585e66b70d0624. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZYHM2415942.
Anh Phải Làm Sao Đây Nỗi Buồn Đang Bao Vây Remix - Nhạt Nhòa (TLee Remix)
Đông Sang Thu Tàn - H-KRAY Ft Việt Còi Remix
Đông Sang Thu Tàn - H-KRAY Ft Trí Thức Remix
Đông Sang Thu Tàn Beat - H-KRAY Ft Việt Còi Lofi
Đông Sang Thu Tàn Beat - H-KRAY Ft NVC MUSIC
Đông Sang Thu Tàn Beat - H-KRAY Ft Việt Còi Remix
Đông Sang Thu Tàn - H-KRAY Ft Việt Còi Lofi
Đông Sang Thu Tàn Beat - H-KRAY Ft Trí Thức Remix
Đông Sang Thu Tàn Beat - H-KRAY FT PONY REMIX
Đông Sang Thu Tàn Beat (Thanh Huyy Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29ba5cee3d40af7fdd1c3b9bff54e15819c13527a825ed5a770bea452f25c1a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZYHM2427082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea5b8a88fcc19d8c098064fc84292bf609192a3289cfa34d2e01295affb2d91. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZYHM2427371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe56618527332ac60d8e1f82eca58a8f772add6772feaa53bbc8a5a647d9794. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZYHM2427836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4c42add2ca794645f1e0d3d5ae853bc470dd04962e7327141dfa94c2714419. 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/VNA0R2401599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4c83bc97c33d88ba7b7ce5a0d93e631c4c94bb42d8b11054288273de1ea21e. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/KRB922430378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f8d37d25ed49e103bb1984d83523175f2ce706a82bb2f34c063f7d7c444389. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZYHM2500457.
Than Trách Số Trời (Beat) [Vinahouse Remix]
Than Trách Số Trời (Beat) [TongDuy Remix]
Than Trách Số Trời (Beat) [Beo Lofi Mix]
Than Trách Số Trời (Beat) [ThahTrung Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe75853b76ac738528628382d15feb90d34cd3ce9a0d213c710b4b3f9b8be352. 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/US38Y2542539.
Không Tiền Dễ Gì Có Duyên (Beat) [Sino Remix]
Trọn Chữ Hiếu Quên Chữ Tình - Style HuyPT
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad91a659e733b5bd4733d5e67f864654421e2b068e3d40a78f9cdba0123c577. 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/VNA0R2401689.
Medley: Có Chi Đâu Mà Buồn / Đông Sang Thu Tàn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3654fb76015613f7ff2a4f46295cfe4b0f9f916d67fc6640643904700e6db9. 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/VNA1M2402048.