1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x36248883010cf171c68782f5afb4c9f4596f8aa555f40c18cbecb80f07f45d36. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57434062-2c97-4f1e-9933-2a2542fd90a8.json and https://artists.proofprofile.net/proofs/artist/57434062-2c97-4f1e-9933-2a2542fd90a8.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 → block OTSBitcoinBlock must exist at that height 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 0x434f5a8e3d9becd08c6c30760c396a89d289afd355d07b80213eb5918d4c91e1. 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/FRX282292453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6a3ed40198065d21e21f49a950216e104da12d3604e3b8aea2fc525edb1d63. 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/FRX282295767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadc833b6e50d556d512f5079cc8a173af3fe631adea7aeb92faab49b0a10b55. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:26:29Z), 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/VNA0M1811246.
Quá Khứ Chỉ Nên Là Quá Khứ - Rap version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8390ae19754cd46d1d5b4309c7b630930325e9587519fe0218ae39623cdeccea. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX282288591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b374a88e24fbf26614cbc54adffddf0309221bb8dc2b004f4e8ae1e7e8abcca. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX282292459.
Anh Đánh Rơi Người Yêu Này! (From "Thật Tuyệt Vời Khi Ở Bên Em")
Anh Đánh Rơi Người Yêu Này! (Thật Tuyệt Vời Khi Ở Bên Em Ost)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9db9f36189c8d1b132c61d620ef3745b01a31a5bc12c1817ac209ca9cb1e0c3. 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/VNA0M1908025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aca151be2e6eab88bd2523b3700da7e4d23c8c5189326de3962b43e5362d300. 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/VNA0M1908817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5e1ef784d841387589e3f8ad8f648a51ae6e8e329db978cda32b6dd72f920a. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:17:13Z), 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/FRX282295740.
Quá Khứ Chỉ Nên Là Quá Khứ (Rap Version)
Anh Đánh Rơi Người Yêu Này (Lofi Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8a35c7caeea48c44d374801d97df293fde099e2e84f73f3f0d1a620ae20c99. 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/VNA2E2210356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95560409e3e5d6a84fef90dc73e76b1348979e100aed6771d9e24e0b8016485b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:15:21Z), 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/VNA2F2300163.
Chỉ Cần Mình Thương Nhau (Orinn Lofi Ver.)
Đôi giày chưa bao giờ đúng size (thì chắc giờ này)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e02521e3db68847f4e5ddd50175e4805015402fc2d5d4b1034ee73d1f767e25. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/QM7282591215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9618cb167c6dbcc2c230dee52008f78b6673003586f621667efc096e30317f0. 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/QZN882242616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef3ca0873fd47aa91bc6ed26cf093da8e4e8e1b4b78e6fcdb0f47c2c85c25ac. 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/FRX202204800.