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 0xbfe0e94700526b41c239f3f011710fc226ffed0f59be2afb7bff96ae9872e88f. 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/0f1ad118-7f7c-4a86-8b1b-4af1ff73c7ab.json and https://artists.proofprofile.net/proofs/artist/0f1ad118-7f7c-4a86-8b1b-4af1ff73c7ab.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 0xdeef93ca1a0c6648a7986ecb7858c95a1591ab6b1734344669da482207615642. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM4TX2464150.
Năm Tháng Vội Vã (From "Dickson Acoustic")
Khắc Mãi Vào Trái Tim Tôi (From "Dickson Acoustic")
Như Ngọn Thủy Triều (From "Dickson Acoustic")
Tình Yêu Không Thể Phá Vỡ (From "Dickson Acoustic")
Khó Có Được Người (From "Dickson Acoustic")
Người Ngoài Cuộc (From "Dickson Acoustic", Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381df6b06172b139d4a8eed31ba4311c74d2a3adce9ab159f599937275b95f8e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX202388654.
Tịch Dương Chi Ca (From "Dickson Acoustic")
Không Phiền Em Nữa (From "Dickson Lofi")
Như Gió Với Mây (From "Dickson Acoustic")
Đừng Giận Anh Em Nhé (From "Dickson Acoustic")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20533cbbc02aa20c2799e71ee6d95bbaaaf7fd514316f513f16f7e5019b91abf. 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/QMBZ92324359.
Tình Là Hữu Hạn (From "Dickson Acoustic")
Giấc Mơ Một Cuộc Tình (From "Dickson Acoustic")
Tình Nhân Trong Cơn Mưa (From "Dickson Acoustic")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0923fe46679e71d6777d123929291806ebfdde7cfb7290fe3a925c50ef920e0d. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QM4TX2482658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea08275521bfaff2c65c09291d089a94921c8d2bd7047ff14296c0a30162722e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRX762405978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e369ab94af34f3821c2c0af122de1d120dff61214f6163d516569032185de4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZYHM2415625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b404cad20d7a45a3ec37a8ed2490df4abb507943af75f5de37581ab0c63a96. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:08:21Z), 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/QM6P42465511.
Tuyết Chân Thật (From "Dickson Acoustic")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8167b893ca005443eefb594687ee20c8b24680a4e6a6b604c3d7cee3abae2fff. 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/FRX452243994.
Khắc Mãi Vào Trái Tim Tôi - From "Dickson Acoustic"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4db5c5a91038c832e8be515ad616b54cfbd7964c2661abe6d5f2a8084ea22a7. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRX762241823.
Tịch Dương Chi Ca - From "Dickson Acoustic"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e5d6b363184b8b1e6ee548e2b63eff17e49a70cbf7c284a7bbf3aa4724be4f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX202387498.
Đừng Giận Anh Em Nhé - From "Dickson Acoustic"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abdacfee882c6ed9509d513cf62f6882ff2d7582389ae7509fd05d282ea48c0. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:40:35Z), 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/FRX872397531.
Giấc Mơ Một Cuộc Tình - From "Dickson Acoustic"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1fdb3cc72e797ce4a332dffb1915c6abb00963f49fae76850fb1dcef1c2922. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/DGA0H2308391.
Người Ngoài Cuộc - From "Dickson Acoustic", Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5eaf106c93a485ba53eab743daf99681bf143e0be15ca4535e8ab8958b901c6. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/DGA072340063.
Tuyết Chân Thật - From "Dickson Acoustic"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3731dbdef341179a0c3a1412ba231d3194240a820b422487ce80ad64a9287140. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/DGA052457028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5ca1a25d1c63220bd0159ae084cfe075674c3ee7b1c94f32f32db8f08b390c. Chain 2 (Bitcoin): anchored in block 957534 (2026-07-11T07:10:38Z), 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/QMFME2436547.
Nguyện Ước Cánh Chim Quyên (NhacPro Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bf933a214001d3dd83fabc640d96d90192634984e4616b27e48a89e4a8253e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DGA0S2458909.
Đổi Biệt Danh Thành Tên Đầy Đủ (NhacPro Remix)
Đổi Biệt Danh Thành Tên Đầy Đủ - AM Lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93d393336c5800dd715a224e488df8c6a687bf9563f5228aec10a4e59b5fcc8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM4TX2589044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357a3e31325d777031a2f1abfb7c63c7263f2fd1877ffa5c666bdf593a854668. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:03:34Z), 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/QM6MZ2545945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42063debf6df51457421ba5d2fcf8a4576c0d11bf6339effbfb67a18758ac574. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM6MZ2545946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9430215c6512206525f7cb7fc9fd65c8bb342463ea116d8759a50f2dfec2db33. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QM6P42579246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce4316ff451de2c411886863ae8c71318d955481bdafba6efabad85b447b44a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/VNA2J2502948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7b440d948f5b53489dc8b4c5e0fa68df20c18b3e7812ee0aac349268e14355. 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/VNA0R2501526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460793a40b23da0a391398a05af0077aa03dbfd52a65875f6c50e6861c862b01. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/VNA0R2501303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04763cba09560eb5597038405e42f9e53b7321d860aefd301a2c0f041e8a5afc. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/VNA0R2501112.
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