1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb7131f7f7fef591d0f7f044c0b4cac2fd23db7bad02e36694ee53feb3970db28. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7462e31f-dfa1-44da-83d4-e0ad768eb5af.json and https://artists.proofprofile.net/proofs/artist/7462e31f-dfa1-44da-83d4-e0ad768eb5af.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 → block OTSBitcoinBlock must exist at that height 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 0xb7b4af53b355a1df1d3b95de675e4c8dcb473dec09c3fdb8b23ac414030cea29. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DGA062480554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5275b38a139b6e3349c13fda55aa3a445603eeded5bf86e192ef228dacc2b42. 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/VNA112300852.
Người Đáng Thương Là Anh (guHancci Team) [Short Version 2]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f70b590e07fbfb2022df380495f23d44025063483d4eeb1de969e0cabee2afa. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/VNA1M2201493.
Người Đáng Thương Là Anh (guHancci Team)
Người Đáng Thương Là Anh - guHancci Team
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461acf97ff6a7f44849b0b36c008eb521fd01d651958ca1204689a3341743a1c. 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/VNA1M2201492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a30b22f82e080339cda710c5540463de32904d06949a279064db936f844d548. 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/FRX762280502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598b87687c20c01f5dafac229eeb04f8b6e98dc67844849b0f283c07d7137e6f. 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/FRX282288535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e948e038eb8c9f55c38a187793a55262aa8de6cc6bc63e1b3149bbadd6c128f. 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/FRX202248435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5add47e66f146dd7a1139658252c323227ac48a3d421d5894a54a1e8742ec49. 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/FR96X2239877.
Búng Cái Có Liền (Theme Song From "Nghề Siêu Dễ") [feat. Ricky Star]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c81b6f0c29f149f5f9f774d0722c74d87e6cdf24379ebf2ab4cdc4f2c1689f. 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/VNA0M1927086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304bd92bd97121cfa72431af3f9408ecb73e25400075b77e74ff916d9674f474. 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/QZS672194758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60066747296a0b83bd450bb1f6d119b4bd1dbf47bc104a3cf1dd33ae8bcae080. 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/FR59R2129195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf617b1084b14b1dd77a90b09acb2b8f317d6bf1b6c5715adad81bfd4d778f300. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/VNA0M1911406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe0d0f441c949b82a664b635d6b47291df6b72efda8262150c52b3611b7d463. 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/VNA0M1907547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf603abb85e5f1e271b200b9990d5af7f03a751acdea58dbd265d61884a33b4fb. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/VNA0M1907546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a05ea55e220236fa2c84c9ba1a62154ec580701160c7e32de47c4808505ca4. 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/QM4TX2474372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484c7f7b9bb19a683d6931fc5f6c190ea06193f861d0beadaae7fa7524343a50. 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/FR59R1948017.
Điều Tuyệt Nhất (From "Hồn Papa Da Con Gái")
Điều Tuyệt Nhất - From "Hồn Papa Da Con Gái"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec07c5e0454d13f8f34f40ddab2dde8ced6e9a3299e8017f62003144dd36d86a. 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/FRX282094355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549e65af72d537ef09b8b7d3bbbfc11251a001058e4063f4d84f96fafd9a6cfd. 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/FR2X41969321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd24ae183123effe5fddcda92a4e93b750c08f8dba37c658165c1d716721a374. 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/FRX202066559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab6ee68f40e8ab1d272015aac5ee213ce7f1c0122eb50c35b49f2c9d16fb70b. 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/FRX282081450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e9d2bb848d544b43bc24c237ee9163d53fb839d2bbc763ae863d9eb6a0399f. 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/FRX282182522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf6f51c0632892d6ea50e53a69da34a2d64ce1ef709a33fee9c7c6300949480. 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/FRX282071706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe75916716ecfcee3d8be296fec79eceba7d24badf74d22c23fdfd448761552f. 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/FRX282081451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f1a6eaf4dc0dbf1e1c9de392aabe26daffa93cc18823d8c6a4eed588b4c8e1. 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/FRX762009655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b17ff1b88111abf7e5671c7bc6f1d70dc9f5f348d786675ef93fc3db81d1a4. 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/FRX762009656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d407c3a1f2c412422eee00a0cc8f23d9b85c2ce4cf4956652cd6b40ee59760b. 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/FRX202033171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b2e2406a695df2d128fb69f6975cefb25433f1e91112b9aed624c364df67c2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FRX202033172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706c9a785cab99cfa47d30fd9e30044ad13b287797aa4ad8976e9da2aec2f8e8. 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/FRX202071087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f2483b036d1e368e891044ab3477f41e8d6f09228a122ffe005f8264d90995. 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/FRX282074239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d87f16fd6d550f128065e731224876e93f2878a3f2877b45b7e09b9d1406b1c. 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/FRX202059483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e047908e437ea0940f7e34d23e1568bd9fb5bc37f214def5f2b6cff7b8a78b. 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/FRX282087971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6eede44dbc1e387b1941795e8d497b514929495e471c03e426ef9a1dbdba06. 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/FRX282015202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a696d1040a16df02413a099c8e03d2c3683e56d02dfba40bb57cab28bfb3a3. 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/QMFMG2328292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50ad8b6fc05fb6f4b6cd524d0c55217915581700a0b5a93716b41731993fbbd. 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/FRX202066349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dd14db93fe7ef3500d7d658dd80af82c0523fd6a98992b45e87fa6692198d8. 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/DGA072203029.