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 0x6e81c3290d7d1be4bbc6b07ec237b7ae50863863d615bad5faa44645a4527a69. 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/935dff96-0217-46a4-b45e-5e307d0a3586.json and https://artists.proofprofile.net/proofs/artist/935dff96-0217-46a4-b45e-5e307d0a3586.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Đừng Hỏi Em Ổn Không x Hương Hoa Phai Tàn (Remix & Lofi)
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 0x269c0d4566c88a3bff9b0caf672c7a199627560f5b1fe1b22068b5e7393a43c9. 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/VNA0R2401273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001d732041ae022aefde36142addf8ea11c09a759d3e0e72cb966145ede0d152. 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/VNA0R2401275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4692f94be9b2af004f76cbfa20b36501b37d1069b388c16ef0ba9884398eb7bf. 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/VNA0R2401276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1818daa70322b7302974c683002450b92899e4b2534995ae2d8bc50efbc11092. 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/VNA0R2401278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df771a346fbc6b68269208b2bd26e85ef7718a7185cd0e8ae86e612b588e5ec. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/VNA0R2401304.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47a9a2ea8db11cf20da50dc06900138b3edbef4ce2da3eb14080d0abdc2b83f. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/VNA0R2401305.
Đừng Hỏi Em Ổn Không - Version 2 BB Lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4dd4e061eeada8a1b087817e377a5d727769b63653739314195a82edbcbc73. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/VNA0R2401373.
Tuyển Tập Nhạc Tiền Chiến REMIX Hay Nhất Của H2K & Beta Music (Beat)
Tuyển Tập Nhạc Tiền Chiến REMIX Hay Nhất Của H2K & Beta Music
Tuyển Tập Nhạc Tiền Chiến LOFI Hay Nhất Của H2K & Beta Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3ce51068b27df1c8c876512bf0d93ebc5c4b64781eb3cd1992a648f8758799. 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/VNA0F2324119.
Tuyển Tập Nhạc Tiền Chiến Hay Nhất Của H2K & Beta Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c0340177f504ff1267f2a59e1c66cc83d8643b57bf8f93e35233a387227539. 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/VNA0F2319045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e174ef13bd7d46c65143ecc70eca24873c24b3d3dba6fa9e11a6633e8cb188c. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/VNA0F2319042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7fc95bb0b38a05e9aef827867c4d1f8114d5197eb5d3b9897791676471c820. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/VNA0F2319043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a84acd71e70ff068bbd81bcd005063f1741c303086608271ebfb6fa6034e626. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/VNA0F2319044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda16035540db65ded74dba1742541ed59b9a9bc5779a6e0dd3ad2f91da00e831. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/VNA0F2319046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa134d07d009ee109b684dd082e1cb3492c2ca20db5fa9b6ebb3529206877a45. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/VNA0F2319047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55367d8f637d151f336f8605c0934eadf023db494777e5406710e0751679bcec. 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/VNA0F2411645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96921136ecfac834f20053dab5416a5666f620d8825aa5fc915bf9fe4d0aedbc. 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/QZGLS2509712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568108f76e1a4869cc2d1526983daceca76e5d774fa534c84599f97b744865bc. 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/VNA0F2411130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308bb3f5555364f6ad0dbfd9988b3fa4fc21fab3a971406555859a820c7119a2. 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/VNA0F2411097.
Mashup Hoa Tường Vi x Thương Thì Thôi . DJ Lucy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03638cfc29ec89e5c6898a4637ab40877edd275aba4c614b7cc8de3e2461bbfa. 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/US38Y2503575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae477fd0173a9abcd6459c9537d1c57abff376cd228e4f861a0a4a450c4e57c4. 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/US38Y2503045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24eeed4446a8638fecbc171a12609a1d88db6ec349cf4b422d2a9086c6ea508e. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/US38Y2503047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34503504ba609636f07ea5a40890abd670d9442900c5350aa46f99c255ac46b4. 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/US38Y2503044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800e4ea4e427b420feaf13ba86d3c1fde346b85d5c9d3e5a32227fb395eeddd8. 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/US38Y2501194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0165255dbd651e5dfc466180ef63282a2e47332e4cdaa37f448416dfced0b774. 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/US38Y2501191.
Trả Lại Thanh Xuân Cho Em (Vunhann Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cc5dd9c1e3b708bcab36d4e8508ccf5c9a40617d687becc3d6fb8b89128f40. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZYHM2500459.
Những Bản Bolero Remix Hot Của Mee Media
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3da7edae9a7d30683dd3a47a7edb0a57789f778e687e07550af0eb2c4b3d785. 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/VNA0F2102982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08700565f7b78875e70d9cf50dd6b8afc31fd2d539dfcc544b312fde49520f6. 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/VNA0F2102985.
Mashup Để Anh Lương Thiện - Đừng Hỏi Em Ổn Không - Anh Thôi Nhân Nhượng - HuyPT Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eedbdf03b999163bb05288200d2163d145148da51e051336797978f5a0d363b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/VNA0R2401141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07802ffe8e1350399027bd6d7962db8acd53a9c0b3d242ecf3ef8dd5a3163321. 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/VNA0F2309904.