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 0xe1bc40449c9780c0333ce002c8c37d3b8a90a3a0c3124df317fd871638e3b016. 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/2c0c6efa-1034-4e8d-9a6a-a93f05ce518c.json and https://artists.proofprofile.net/proofs/artist/2c0c6efa-1034-4e8d-9a6a-a93f05ce518c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hạnh Phúc Không Dành Cho Tình Nhân (Cover)
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 0x5c155b1696de09ef10efc3fa608a0b62a8f1dc62a1c2d4d632a65c88c151b87a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/VNA0R2400823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bb3e4df0caee30c55f74ea90e2c44863deecb942106f176c9726b687c59d7f. 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/VNA0R2400825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0e44cc4f35d53bf8df0bc21f57c4d2226cb2eea926c7bd0ae6ebfc1a1c45b2. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/VNA0R2400821.
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 0xff7a476ba587d5b43b29e87e45f3b5f0c6c21a4ac3a12d4bc59d9a1910abaad4. 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/US38Y2419751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30c5bda451f040f6165783e97bdc4438b88cf288926130169e26b40a07e33b6. 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/QM7282460183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecacc2565822aeb73183e43f4f9b32dcb732519b3c89462ec5f04bf2700b09e0. 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/US38Y2415651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5db354373326e020c9699fc5602772baf85ecd91137230d31c97ee911b7a48. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/ARC572404726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f633ecf45cde905a40bb64800948287bf29ca701b25e43f1931d8c07b8b3ad4. 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/ARC572404366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a1cc900d3a292b769c28411f75a8ae767c04c62d0d321ce1935d79e748bb28. 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/ARC572404365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643a3423c93cf0e836e48faac511fbe04bef8a69021100efcdac0c6e324d901a. 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/QM6P42418856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c156ad528fc17f987e1a6db72cd4c86943175a16a32598a5798386ef2e64402. 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/US38Y2517988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9b56785ff101291791a5f77f6bc579b80b9e35a3d7f20f43c60625e730d3c3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/VNA0F2410112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3d71e55a35d97c4a69e97a8870f05127befc2c588ab9e06d1dec5baf42d264. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/VNA0F2410110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ccc8866fa128d58338fea01e77af4f64d256db027ec271fe9d58f0978b0e35. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/VNA0F2410111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d76df8dcee702bcd730def4b16dce854e7ef69da8927d5aff432da9e26f026f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/VNA0F2410117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7c2245dcdba5ca13d35a64aefdba5ccb11a5beef7baa419c34ef43f8109409. 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/US38Y2510609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54123a31477daa0f4eca7268e80e7082b8a1870002ba38864033dc329624f449. 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/US38Y2507346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fc786775636c83889f82ecd107c02c25c18622b81c9794179a9409aca9de2a. 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/FR2X42511408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade586592e3c3dee35af6488259c1709ffa3bd6b8eecdb77abd1e98ef917f11c. 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/US38Y2503624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcece56326db4be88327253231a6b2f351a19e3a77d447c4e4d681de8b4ce4462. 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/US38Y2503688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a1f2613b9ab0d735988c55c5e128620cedc8c04f19e5b96832431b4d29e20e. 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/US38Y2503620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaedbba8b9cf21143a44a2471d81c65d1b7a3c96a9eb537f520f09d6706893d7. 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/US38Y2502504.
Ngày Xuân Long Phụng Xum Vầy Remix (Beat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e8eaa580481e1826c24aaa8d1febba3d236f35fb774153fd1c93b6ae089f01. 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/US38Y2502305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b63994ea4278098790a9351201147d4db99dd922f6397660808c1daf057d69. 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/VNA1M2402207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b7372024755bb8dcac97582f362d8feed1666199e51e5224040206878f71d5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US38Y2501082.
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 0xe9fbadac9ad6152c1e68866bb4ae22c2d10f0044eda0049b2b3ff732c5faa4e6. 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/FRX872437525.