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 0x5e1a66a428f979dada9a4ef01f5f96dd77cea9207d4ef1321cd625241fa1e1a1. 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/f835c283-7057-4e84-a02a-287a22d4ebe4.json and https://artists.proofprofile.net/proofs/artist/f835c283-7057-4e84-a02a-287a22d4ebe4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Có Cánh Chuồn Nào Trên Vai Em Không (feat. DJ Thành Nguyễn, DJ Ánh Chẫu) - Remix
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 0x31726b58bf5e91bfcd748882eef322be7fde3e07ba7dda71c76933d1110d8c71. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/VNA0M1850209.
Chắc Anh Sẽ Nhớ Em Nhiều (feat. Bằng Cường)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4f42a34830d423c31dfbccee124272bdc450b8974956af85ed6f2c6a975a88. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:07:40Z), 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/VNA0M1850213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3794b3810666b565828cb9d6aa7fde605ae476777c2df48f4660189a69a69800. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QMFME2247694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac5319626be49d8d938cff0350939ce0e9ac8a6ca8d0e2982a75a3203f2ae4e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:40:37Z), 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/FRX872149535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b76789e8290c0fb59e26d5730995986326993e85c35c97704d2c492134f949. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:47:54Z), 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/FRX762139468.
Người Mình Thương Không Thương Mình (Remix)
Người Mình Thương Không Thương Mình - Remix House
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf448271be72640d59481a79b59d1e3a6add676edd4c43ecc5f6742f13ddf0255. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR96X2137528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c41a68424b1ca231862995865a6c62079bf9706ef324789db85f575d30a9a2. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FRX452158305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cc7032072fb6b5fada7f7cfb22ec2a3c6d017c4fba1b1f14b3bf95b7e5527f. 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/QZWBE2244343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b171cfbbd4b7fcb35ef18bbe7273d6b661f8fb8315cdd4891683f8d6d9bfee7. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:49:48Z), 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/QZWBE2244344.
Hãy Cứ Vô Tư Và Lạc Quan Lên Em Ơi (Lofi)
Hãy Cứ Vô Tư Và Lạc Quan Lên Em Ơi (House)
Hãy Cứ Vô Tư Và Lạc Quan Lên Em Ơi (EDM)
Hãy Cứ Vô Tư Và Lạc Quan Lên Em Ơi (EDM Dinh Long)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a6c3693e967753704bcba26f5eb8cfde893170fa48f95a3230d2061a12f988. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWBE2244197.
Hãy Cứ Vô Tư Và Lạc Quan Lên Em Ơi (EDM HuyD)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7acad59aa843fe1b9f77ebadf827d47fc4771b361f50a8f68708e77d92f5e88. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:31:58Z), 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/QZWBE2244199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a491d88ba64ebb0ca63024c5ff6f095cefc8ce385bff10c313d14b0c484341. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QMBZ92324211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7037ba51d6c2b8534de46f65305180cc2a428cbe0af301486567f22575c1e36a. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/DGA0Q2397918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc097fed3cbd4eeaf54f69368e15c8f91b0adb027a4f332091304391b0ea09333. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FR10S2405457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471ff41851ac1f47052790fd6b7091f2f9386658351c4c3db9ba2d2e8596022c. 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/FR10S2475720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa427904e515f29414a4d9365123ac0ca4c0b74064fc6134015576d2c078e3d9a. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/FR96X2475759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c9181e52045d5b2d0b9b9bac081b0fcb4546a0d34ba1384403727c73dce0c9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FRX452404704.
Có Cánh Chuồn Chuồn Nào Trên Vai Em Không (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8c523f70954f032b812f279b6ecc14aa6d9166e5d593adf6c9ec08d25d5995. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:32:19Z), 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/FRX452403772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7180041d2ef25e81838bba683cc662c54a97a0dd315834fa446be1c70683af. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRX452403769.
Có Cánh Chuồn Chuồn Nào Trên Vai Em Không?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f02726df765b0b68a682205ed5afb5d4603cd7b181cf627232e87af72a77785. 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/VNA2F2403185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b76789e8290c0fb59e26d5730995986326993e85c35c97704d2c492134f949. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FRX762139468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf93a991a8041ccb801b4466f5e44de6c3d0694de202c8268b95b11aaa30dcd. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/VNA2V2400864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154b052716bb3fbcd100ca7796d51a54c24eeaab704d86e06dc78b90c9dbd540. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US38Y2510831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67234cfe0ad81bcb6d3f3d1d97746bc5642be00e0c6dab62b73ed9feec45da3. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR96X2595209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce6dee29ac7934c16c30da02d5e41e4a727904ea59b5c8e58aaa719b02407d7. 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/VNA2F2500220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597633f483e01a2558ce48c5da4f4635fab31466aacf1b49446f21be7771448f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/VNA2J2508650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0148cb9f83e870179591ecc20f97916b97e8af576db361592aa671c15adce9ba. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/FRX452572560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812b8710b0b7ada58371107f8c1a3a8f7d3fed330d11bd89fb5cb249a941faad. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:09:09Z), 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/QZYHM2508053.
Người Mình Thương Không Thương Mình - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35049fa2ce75515a68f5e62576ddcba0b6e5e036618ce751a19941807633c6dd. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZYHM2508338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b44bb98263fb272437c7ab9cea5eebe909c268f1416f4014167e622f048db2b. 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/FR10S2184943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2518bb1e3ce95905551dd4297d11bdeadd6ecdaaf1502c5ecdcd263955fc6b3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ARC572404725.