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 0xfd48e64ac73b94e064d79c41bac7c09b50abe9892741575274c6e70c748b2db7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e930015c-83b7-4fad-a524-d89677367463.json and https://artists.proofprofile.net/proofs/artist/e930015c-83b7-4fad-a524-d89677367463.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 → 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 0xc17f45868e1d94907b9bc40fac0e07790d69818605275a9110c685bad3abf6dd. 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/US38Y2510693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060f6c3e1800049e4e4648b22947df98b1f6836675a364a8f32c9e21afd6f52f. 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/QM4TX2563054.
Mở Lối Cho Em 2 (Huy PT Remix New Instrumental)
Mở Lối Cho Em 2 (Instrumental Huy PT Remix New Version)
Mở Lối Cho Em 2 (Huy PT Remix New Version)
Mở Lối Cho Em 2 - Huy PT Remix New Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6231dfd92f61617c08d0c2904236d13c4d0d5939b9fa929b9b336555c00fda. 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/QM4TX2554915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b213655c7232460bc07635d74051b97c556aa658da1f3f698d83cce1bfa292. 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/VNA0F2410405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e092b8ded1251a60df4c7561c4e34a997f19e3fd70c70c20e5ec8d212ecc5f. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QM4TW2566391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e30429a0019a5a8ff7b13300271162b2e1b760942f5531e1759a6b500dee1b4. 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/QM4TW2548574.
Giao Thừa Vắng Con (feat. Lương Quý Tuấn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff827a7e78d6c4d6b20ada315a3e5037b8016cedccc257a204adf405874d62a. 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/QM4TW2541902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7183b3e6ffa23518911d483f3d9f75cbb0333078208ab1d1416795fd2ac3fd73. 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/QM4TW2530994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4697b4fcc7897ba0a1aa15fcfc41af9020fd4b8a904026bbccefd8faf1a57429. 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/QM4TW2516925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382d200e89619a9290bf3e0ce534f361288db99125b53bdf63e60d3d786827ee. 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/FR10S2532997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b47d714230132fde0aaa803bc3c91cb45c724550de0478b393e9f3d02b84f9a. 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/VNA1M2401393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2486eb054aa97c80ce40cbcf4aab32d90456e7a922987170a3a4f8434bec48. 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/VNA1M2401309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21508a5a6ba8c9400eae6e7af91d0fb8cf49b7e0c9acfd4ca457c335aa1c773. 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/VNA1M2401283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4312b4dec0788e009fd0608307abb1cb53060d5cddea52da046124d875c29257. 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/QMDA62484710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371f910d1c9b84511ffbef0ce1e70a4219a5bcd7498b118fa8d73d4b36053ff7. 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/QMDA62484687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b983fcd4883a8841d19a107c35baccf6ae8f51f0c8c986908b9ae6b2d6e4d50. 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/QMDA62459468.
Anh Phải Tự Lập (Prod.Tuan Remix) [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c72c0668c13b5bbc5a97be1c30f583934c0ef1bb88be8cdf7ffc791ffc564d. 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/VNA1M2400418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7f7463d8e017ead61363dab89c588f3056a7719345f448afc63ecfd4112c9c. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/VNA1M2400336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5db76eefe990dee2d00cf6787ad88551d067461fbe77004d11f1b365bd0cdb3. 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/VNA1M2400298.
Anh Phải Tự Lập (Vinahouse) [Kanie Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73549fcbff91a1db05f0fda6b587243f51855e1b0cf164d0a1d050b31ef058fa. 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/VNA1M2290046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bb4b27c0ee41fc7df4fd86fb5374f6688cd6f7b2edadc4dc7ce539841a8091. 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/VNA0R2500086.