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 0x1babfa898c8ee7e2c32504800b12ebbf7c6ba530eb546ec8085b91b407098528. 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/6b93126f-d184-43ad-b638-8c28d6943e93.json and https://artists.proofprofile.net/proofs/artist/6b93126f-d184-43ad-b638-8c28d6943e93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cả đời này không cần thiết phải tranh giành với ai
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 0xd68693692e3def46c87dca7b0201f71498f13c8616a4ab9f32f342544828ba68. 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/VNA0R2300279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213e6fa9a1a34ec95289f555e97805b7a4cf744c1358829fbd7b3ac5962ad4a1. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/US38Y2311995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224c65b528e8e916b071092c09d01d0de2bbf887e51aafc3b83d209995681a52. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/US38Y2401198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f304ce270ee67f92366c9914f5747db837cf27056d8d9d01584517e6315e7f. 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/VNA0R2300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320894401ec742a663435e94be3eecf97c24da0ba4b34c59edb2c717ca85d795. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/VNA0R2300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4a48b5cfc1fd7d7bde160aae5d9205900d6806be48bac4c60cd8708ce3448e. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/US38Y2403320.
Chàng Khờ (feat. Dương Edward) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad84886c3b9ae51ec4d341c4d958b8390a1ffb4bc16485253cbafe3ce80484a7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US38Y2403322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b01b7d216870fd57dfd5d4268663877408d9c6490b25a240f466e0010a3a595. 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/US38Y2411842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fee42bd2e4d0e2411eb85543f36bac43604a7ee77e470885f7efbd32533045. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/US38Y2411843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d09b2cfd8ebf185ca255298e7e08440482533e17093ef00955a6709d1ec641f. 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/US38Y2526113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aaf142f683971d4be5dde962ed677ebcc39764d51109756b6b858b298f80b6c. 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/VNA0M1920031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b96261c27a15001877f82bba59710df02a4be3ee3b0b352f630c6506c1541d5. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/US38Y2422148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5638f968ccc6b2c009631acf9481b0fd7dcf0b51dbfb6c27fe40c6a545918d. 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/US38Y2422149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa215bddcdaea8a44eff92a4bd688cbe919ec5e8831bfb6ab485dfac6424e46c2. 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/US38Y2408679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914c73c1052a5fc08891400c72618158c509f32f35a041eae3fa98f0375bf8f9. 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/VNA0R2300204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890949c391ce6e8492e4f82280a474421404f458ee1563b84a6234fbfd752834. 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/US38Y2311973.