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 0x0dbcc3b1e1a561badeb194eabb4f9ce7309f1b855c6085f9d552961de9d4cae6. 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/3a091776-08b2-45bc-ac92-d1f2956432f7.json and https://artists.proofprofile.net/proofs/artist/3a091776-08b2-45bc-ac92-d1f2956432f7.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 0x02773aec9ffdb924222279d62377b7753558f6ed90c65c49ffab52a3e062b07e. 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/VNA0F2307190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9244454c7a58b1ceb74956791c73e798b605a9ee1becc4ef5bbedfff85a2ed1a. 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/VNA1M2403874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce72e1b87dc5315d69b59e56dd792942d64bd31e9a2a1d1351148fdbde7cf793. 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/VNA1M2402253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6541a8edc1f982728d58def10c37b909c130ed15107a6dcbaa5166f5221421. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/VNA0F2406743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f0a0dc76451885556fabfee99ed9924457feeb451f05ce6651afef43cb131b. 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/VNA0F2403370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce5713ef9be51f594a4076dee0a714686230e852441704d3152ed7b77c85424. 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/VNA0F2403369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5d9d8faff2143c9174d2b0afed7c4f421e63eaf49e29e99964e50cbe981014. 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/VNA1M2291899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7546bfcfab87c4fc1b4d636b511f9d051bdfca62b7f2c44bc83ee41afda016. 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/VNA1M2291897.
Không Biết Phải Làm Sao (Đức Louis Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9101a87ad45650b4351d19def3b6c5325967d0cc4c50d6b3ec03ec093feb824f. 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/VNA1M2282539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a3618ac95dff973a18d65be8f048dace56cf3cc431843daf110f02c7f510b8. 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/VNA0F2322148.
Anh Thương Em Em Thương Ai (Đức Louis Remix)
Anh Thương Em Em Thương Ai - Đức Louis Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f25a013fd2379bbb2cbaca0e3bdccba418f5a9beb25a54f97240c1dda34f07. 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/VNA1M2281642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2771323f971c126f319dd3378d804118dc66a10ba0b0d123afc897b15cd7ea. 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/VNA0F2319273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a63d3c380e822587f82ba3b15f828792f972916345822eb2640c4a69a68556. 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/VNA0F2319127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dced76cb9f0845413262c0ec27b54af01edf5efdfbacba9895a981803973502. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/VNA0F2318772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67054f900ce32017b57dbd10fd782abf0abfe03569ad10dbb423d7a3b6c34eac. 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/VNA0F2318383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c3862c139588b15f1152529a5b18a58097c34bd29c39f0f2e4d54264b47f62. 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/VNA1M2278678.
Giá Như Anh Là Người Vô Tâm (Qinn Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1dbca9de79ec3c59b29ae6699ce00f1e57740936ce1cf8364862af5dcfe4809. 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/VNA0F2317438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a19a7037abf876c61b7ca5b33b95106ed24d38792382b2d1a0f3983b6f5bc5. 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/VNA0F2317434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304d07120bfa824a5d1405cf65361ca811c89e82430a042938b1aadfe38dec95. 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/VNA0F2317397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49df671a0a59c80dc64bf6b868a8ea8b98b7a6bb84218e774fdd53085f091f9. 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/VNA0F2317348.
Khi Yêu Nào Ai Đâu Muốn (Hoàng Đức Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb317e3be9f15b7f2c28492fe02a77170859a0fa0b89348b824240e20da0e3ecc. 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/VNA1M2268717.
Yêu Em Nhưng Không Với Tới / Vở Kịch Của Em (Đức Louis Remix)
Yêu Em Nhưng Không Với Tới / Vở Kịch Của Em - Đức Louis Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5305b5b67f3373e681ba53e1e8e4ec04b8d40fe99e469b753043c48f29aef51e. 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/VNA1M2290997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024149f03da3b2371d6f75bd51b1b85b4dab85cd2f474ead24cb5afef2f27f74. 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/VNA0F2311619.