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 0x6b5f57f7f038662702cd72ca425bec6a66378088c20b325a8960ab59fd4d63a4. 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/642addcd-77d2-4230-bd40-e5ce575db6c5.json and https://artists.proofprofile.net/proofs/artist/642addcd-77d2-4230-bd40-e5ce575db6c5.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 0x88cf0b8d83d9e7bfcd7b73aabcb38808c4c040de704f6f2e14921481cc5e2915. 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/BR3G92100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d5ac4a2d8a1e173e485ec49f04f2261a7ad03c951de915676a175ba71e02af. 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/BR3G92100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cc0bac781c7375e316d11fd7a15eb377bea05170bb7bca4a608e72231069bf. 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/BR3G92100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f1972368328d2e6cca1b387adcc8740391f73208a33689370ca9a7b8a9e3fb. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/BR3G92100007.
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 0x66b4d2ff2e258d4ec3c14cf4e597c5127018a950140156bbf2a7bda95bca45d3. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/BR3G92100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4d31dfff5fc110a211c8f5d0572854c46156268e673d34c84dbe261cc1aff9. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BR3G92100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f50f03ee8fa0b14e585dc4906400739d4fa065fa6e0cd59b8afb7a1b38d58a. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/BR3G92100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d2a8c53623b90b1b3054b556f52fe99d352b2b4aee6f11e9098065cec73ac7. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BR3G92100006.
Sente o Clima Samba Clube no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675d26a2b240be5921dcf99ace8e9f7ec65ddcecdab70947081b9abbd49f2a3b. 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/BXSSW1800996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8814eeaaa51f030e618cfc18678c35bc8977e3d5086cd1742a63445bbaf3b3d2. 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/BXSSW1800997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9afa297c1e476169e6a05d39a6393737e0573d59d6b88760568b7060bee868b. 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/BXSSW1800998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e736eeb9f4293d891ec878a29714fe3143195ed6b4b24b4345d24191f0992c. 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/BXSSW1800999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb263f9dc2e7321f7b7e4c63b73682a34c96cf790d338385bf535a13e26e7d1e3. 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/BXSSW1801000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1644b9721c6eceaf9308c982930b95694dafcb2de33746400c95099dc01315. 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/BXSSW1801001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327c15f349e4a9708151c4801022b8d212cb8c54dc62ff913b61db8a926cf583. 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/BXSSW1801002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c64e0b870d0e17d032824a794dc15d647db5c2ae9b865bf7fe595d16f90772. 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/BXSSW1801003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab75cf82db5191758884a6583ba3a258c50a5fd37ec83663e593fa8f09a2722. 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/BXSSW1801004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46aeba80a758bf08a25f98c936122e051f7dbc325852d252d2af5625beb6c745. 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/BXSSW1801005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef1036a2a8d3d55d30d657135362eccc75a1d06f66490ad83c8551db8aacdd0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BR3G92100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55df6fa7b4b69816f58aba2205f9c875ca5fdf50836bdc261baca1bd618e7f6. 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/BR3G92000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b733961912d570a6a14cd4cb0a5e44ba9fc09b075df0dfb064a20989db02d7. 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/BR3G92000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612a7b543b829463da7aad824080353f4adfc5ef2146bc7d4387b88d98fa5f67. 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/BR3G92000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c41c350651cfe9da1f40b9e37fc635a0a71c0819c0e2a85247586a249f4694. 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/BR3G92000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a2a0bfbf488cb181f1011ea76e53ec98d183953e1a3e8b86c043ba128d7782. 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/BR3G92000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88458a0fd9b85364f009fef71f6a1499777f0c6e2ca078778e20667231d29da7. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:07:11Z), 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/BR3G92000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ddfaac19a85974955357e8a1b5f63aae7875b97fef25cb5fb0ac36c640f4f5. 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/BR3G92000003.
Sente o Clima Samba Clube no Estúdio Showlivre, Vol. 2 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf017f3644aff27b99bcd11b3bc3026d706df2162bf4a1a15c482ec97e6171f45. 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/BXSSW1803641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64eab6f4137a528e396e7704c408ea9c17470e3c0ab0a5287d7eaa5e9df69606. 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/BXSSW1803642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ff232c0081b6c3a4949035cb62a9a74df10ad8ca327f543edd210ee681f6c6. 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/BXSSW1803644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b398753f8f60894b1c9169fd2f7be88113e9c71e25cc14c4a48efd01fb079f0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BXSSW1803645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a70a7299b6d5797a371296185755f43744e977e00a86cd29fc4ed0a0749cf2f. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/BXSSW1803643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a4e47eb5f17d2151b737601dce9c6a280cfd93d1d44dcd0e7839ba9400769c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BXSSW1803646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7905738f8f6590c51683a113d0d1b54122d1a6bffcc87bcd87bb89c3af18b73. 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/BR3G91900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6dfaf61ab3c9edb4a52df61f0c5da240f8727ae8de4c7943dcb81da12a96fb. 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/BR3G91900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89eff3c3ad05c87a08db59d6548dd6283400c4eff6599e235481ab162de16e8. 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/BR3G91900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691ab48a7ce2564038d3fd21cb667f93e91622bada5ade9ff4f7fc211ac18c8a. 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/USHM81817796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7894d0bc6ec707a50109e6ab6fc54e4573e15adb8069090245900f7ddb11459f. 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/USHM21809249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc764dc0d59a42e8ddcd8a266b8026f8c4fe232f9529f4bb5d7b8119ea5860dcd. 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/USHM21809251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1488e8af7fc7054f77d1d3e8cf96d7bd3429ce395deabf9a3c68de891a975e. 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/USHM21809252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93b3af61d28bca74cbd1c57781f42031e71228b40d190d02934b043f7d6086e. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USHM21809250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ac6c05472dc0eef96e1702a173909dbaf53b00ec4b50de9766c1f7140ee3b1. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/USHM21809253.