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 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 0xf12a9a576e592f760bd1c6882c329be20f98b7d0132b797e3acedeac16598b7a. 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/3b72001b-ad79-4877-b902-846b8a1c0663.json and https://artists.proofprofile.net/proofs/artist/3b72001b-ad79-4877-b902-846b8a1c0663.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 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 0xa18a819ca0c2782217dc70349f184d3d63303c316b26bf712b9bae7725a3452b. 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/HKA411800295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc178115cdc39fa0e045c535178194cf3f5cdf8ce0d2d820c1bfaecf1f1552cd. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/HKA411800288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b2b79b521cd84e21f1fccd7e9645644ccdc2c1a20ceac0d69b6929502c18e9. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/HKA411800292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8f3b4c58975fd65a4ab8459fc910961e2e1b0d80f8eeaa5b579f8034df0ab4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/HKA411800293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0efd8a8ed00235602ea902dc8b5c8a3b8aa24f5b2fc2bba212d2b86c8b58390a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/VNA0R2000515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe476e3d17b85c6ab9da8e5df2731791488367f640cfbeb02cc2a51586725bd0c. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/HKA411800285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cee5158f7e77e36939e256db23f6e85ddd8886f8af56695f94c0263ad83369b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/VNA0R2000513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e3e33e5e4d25cb1581c8740892d628c405ce9af6b8e32677ef33322fed5229. 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/HKA411800283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128beb273d42e20a2dec1c9fa5daf0d25351e3d2966990c0b02412518db6f27a. 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/VNA0R2400133.
Không ai bỏ được HIPHOP (feat. KraziNoyze & Thim)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0b6f4d0b8bf9895549d3bbc04698771c5a9e63b1f6e45380df258411994aaa. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/HKA411800289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcc644ac1bb207243e4ebd8246bbb681b39ee772a30f2c602e0257720ee92ae. 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/HKA411800051.
Chung Kết (the finals) (feat. SilverC & DJ Jin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb763464ffa61d60190c9002b3156e370450efd54fa0a6f141b04c7188f56626. 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/HKA411800284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2e1b537951b8c579ef806b3e29d632085f9fa1a1126df8b7c31416ed14b89f. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/HKA411800298.
Nước Mắt Em Lau Bằng Tình Yêu Mới (Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e2d3a03ad965871cbb693fde2275785adb793ad136af88ca68e96726df9899. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/VNA0M1908066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50591c2e85db202aadc10c0e242031021c77c4e333212f876986ca3226658d5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/VNA0M1911671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0bbee729d0e70d2e1893b6d73a073badceb9efe75d928b72dd462a356a371e. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/VNA0M1921739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0bbee729d0e70d2e1893b6d73a073badceb9efe75d928b72dd462a356a371e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/VNA0M1921739.
Gác Lại Âu Lo (Zang Remix) [feat. Miu Lê]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9daa53d16adf106406b394c9980c7a114464e496ffc259eb1d59c0b2223530. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/VNA0M1925869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab404a411c44d38b89a68e7105b8adb8b7f58647cf506f0f237df7b6f0216c1. 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/VNA0M1926072.
Chạy Khỏi Thế Giới Này (feat. Phương Ly) [Cukak Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c85861665308eac6af81a8b0e29c55286f758b49ae7674988ff77db0c41d232. 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/FRX282223476.
Chạy Khỏi Thế Giới Này (feat. Phương Ly) [Lofi Version by Zeaplee]
Chạy Khỏi Thế Giới Này (Lofi Version by Zeaplee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae0411b7f809ea55156aa502a34549cde629e7c288f25d547d76f484b16acb0. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/DGA052252282.
Nước Mắt Em Lau Bằng Tình Yêu Mới (feat. Tóc Tiên)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f6a3d44158404e8e86b09c7903a91768e786d1ec682c4d68ac749b38bd6ed2. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/FR10S2399133.
Nước Mắt Em Lau Bằng Tình Yêu Mới - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2b009f4d098ef806de40b2b10b76279e6c94555b531215f8f156dd077debf7. 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/FRX762342725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad447bb940ee79dc1514a95c8b14bfc196c352b37e61d5a43c194ef696403e2. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/FRX762342726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16dc1c8c2287f897c4ee33eb5b154dac50518e8259b89ecb09b3f8e723acd9f0. 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/FRX762342728.
2 NGÀY 1 ĐÊM - KIỀU MINH TUẤN CƯỜI MỒI (Remix)