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 0x452eed2d2d4b71489d73e4a6033ad44498addaabe4f8803e2640fd58d57d6120. 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/44a22367-3419-41c3-91b1-7ad198b53cfa.json and https://artists.proofprofile.net/proofs/artist/44a22367-3419-41c3-91b1-7ad198b53cfa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Thất Tình Thường Xấu Tính (feat. Ricky Star)
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 0x65b2a86d051aab049df36443bc1aef6de378136b233d7b06e4f6e883ee575b3f. 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/VNA0R2000774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c25bc4ed45c718d94a0425444473ae78b2f2c8bcc89aa37830ac842ec04da43. 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/DGA0Q2376920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0224f612568f8b282064fab4c6b488db3434218a612acd5319d97b5a08b1c7fa. 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/FR2X42483299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9359eeeb91972c623f49e5756b8df5ba8cd3febfc331b6a0da10eb9da54f53. 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/VNA2F2301597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32973e2ce704ebcf0e4ea4b26991cd3ea0dd76eb0cbae6764e693309021c36a2. 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/VNA0M1930169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69491ccfda2232089baa750b6376c09715a4382aa246096750619062e0837b87. 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/VNA0M1930335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2845c66039e47bca082fd5d10bf8371fbb9df8216c8c6dd10479f114272cf14d. 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/VNA0M1930230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e14555a02c122421f023f2b0f2016b06054aa1a367a169a2e4780b05a4f135b. 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/FR10S2392560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b983b59a13c41a71c0fb9c70c67966434694ae13f64fc318807ec2304dd280b. 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/VNA0M1929203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc358521fa8db73e555c75be887e899f6f3d1b2b93c53f3c39300637c0888117b. 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/DGA082263153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b890bce41c9a6cedff53d8b5d678ddd5992c7326be2cfcacf5e88e723a948d3. 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/FR2X42298937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871987f37dc744adb39fdfd8d29d4e19571206bff6a6e4b289d3dc33211fd6d4. 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/VNA0R2000451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96511080221c8866a88f2ea0129362ea670165db2e26577a10b3c29a14dc85d4. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/VNA0R2000450.
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 0x42e10b0e2b0db4e5430f05c3419d9bc7f39b7bb7cf30c8b6fc128311b2b464a6. 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/FR10S2212049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b60e5e2e22cea1077181e25417ab607fbde1729a9efcdf78727b1530ccbf99. 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/QZTAT2177204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe44c9a5c010ee2f9862753cc9d6fdfa5523a1209e64d372d7fc82e2c89c0af1. 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/QZTAS2159151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce467b5c79102d7a4b890f8f317d226de7bf1df2763181b691d143d51b0d5b92. 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/VNA0R2000286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc500a3f88f34bf457ab8452e2a4eab0a3cd9ed588778e53d0d1ecdf7cee0ee6c. 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/FR96X2143413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475d94222a4dbb90691ddd08ffca1f827b6d5f208d9b8b1a3acdc420292a73d3. 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/TBDK24012022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883eed0becfe042a007630599a9499571e0da55abdff93f20b5a7bfd90737fb8. 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/FR10S2100794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2e196c44ba1bbd30f258088e0f54cd23b0c1f286b9600bb710abb049ed3a26. 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/VNA0M1910342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd894c66e9384f7a0a1cdce089c435632e6686c70c7082a5b38157d8b9673dfee. 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/VNA0M1909777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff0cb015f543555561098ffaa7d4e8c5894db927939bbc7cd859a0772a5257a. 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/FRX282048283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6296b24fcccc16d8eeb8ff29fbb6b90e2685d6d741918117dd54f11cf61c325. 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/DGA062338363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d2f5794c3453b4ad7e75b7b401a37f4c6fb70440e67a9ab49cce0f13fc1699. 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/FRX452003320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4986ee9d94c3be481f9afacfb5561e7bd08d433e8f035a1c36f7307027daf8ba. 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/FRX452003326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120a571fedb729c0a3f0f6070c9c11ea1b1fef8d34b57b765e5dd992a9b848e6. 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/BGA471893886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753e5811c176c9f6f9f13456c56c1feb23521485ff807d9ae9096d8275f5f2b7. 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/VNA112000162.
Ala Ela (feat. Gducky, Ricky Star & Karik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468f361bade0f7e1755c6a103ea57cd72906f237ec81b1082e39d36de19f3945. 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/VNA112000359.
Gala Nhạc Việt: GreaTET - Thập Kỷ Nhạc Xuân
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4539e0569262a0b30de94702eff8384ce8630803bda7b5bc640c26f3866511a6. 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/DGA092208003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc157d5ed16c8610f2e33862c72d7222c0fa4f779d848623297d93b6a70b1a5. 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/VNA112000311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a441cda94b162d0661d87d437c9637a5c261b1f670e215d2a6fb2e455e2b602. 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/VNA112000339.
Sơn Tinh Thuỷ Tinh (feat. R.Tee & Ricky Star)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7dfdf3b90228b29043f67895ded109dd5b5ab4afa32f39e2cdf65b51ae300a. 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/VNA112000141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e948e038eb8c9f55c38a187793a55262aa8de6cc6bc63e1b3149bbadd6c128f. 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/FRX202248435.
Búng Cái Có Liền (Theme Song From "Nghề Siêu Dễ") [feat. Ricky Star]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c81b6f0c29f149f5f9f774d0722c74d87e6cdf24379ebf2ab4cdc4f2c1689f. 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/VNA0M1927086.
GALA NHẠC VIỆT TẾT 2024 - NĂM MỚI RỰC RỠ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64df1c4c52c73b6ec1265025ca77d294098566b4b7c31ef0c9aa5edacea0c114. 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/FR10S2458299.