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 0xc017d3c56d8449720f438bcda9866391ee297764575326c253164f293adaaa3d. 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/b4d7900d-ac12-4533-b24e-018f6ce59d55.json and https://artists.proofprofile.net/proofs/artist/b4d7900d-ac12-4533-b24e-018f6ce59d55.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 0x44a61453f1e2f01f24bb273972abd55febe0bc6e7892f50362239c6b4270c8cd. 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/ES8241631701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456105adf6ec47f45a3c7b3140019bf77f8d6323b09b0b04966b4ecefbf3bfae. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/ES8241631703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee944e11e2e5e7eb4fa880e39692eb05e2922475e73040329c61d6758a6db3e. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/ES8241631704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b888e548e71074ffa34ba23f4394aae4b9ec2e2ab95e3e6feb10d878c7e0b1c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES8241631705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216b955a006593233d7c1c8826c1e483e8a8906f40a954869b0fea7215844063. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES8241631706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593ab1024fbbb2e7588824db7b7852d26cd399a3e746417d33a14f91c2aef43c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES8241631708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a4e98f22e2c9100b584c8a284355ecce69614913200a23564aeef9e644c1ef. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ES8241631710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b6d61a4e4add5a38ed14c7bedf0995c8cc8051e4e42a5a5b404394da9de0d1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES8241631711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aadef207bd9fc1217ef4f65366ceb83b3d809c32a0b8990b4eb25d85e54f68b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES8241933403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c4ffdb9657b4ae3d8940f7ea34eff7bfff9fe1cb5b882bcb5afbd88afe7af7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES8241933405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb128ebfef5ea0530b938565edc4d1d382c48cc00a2083a6198d826e9a2e66fb4. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:23:45Z), 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/ES8241933408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c2baa0d33c4de0c177937864af9da78b7af8be1affd7bbc5017fc74eb84b3b. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ES8241933410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3d768b0658ea36751460fbffeaeb29338947871758b4087719186bc80aef40. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ES8241933411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae113337533bd5eb1e87c7b33137482998ae012384f305216b0d5eb55dc09b8. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/ES68F2300204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b24b527989e4be5f9efad79ac7c1a5f8800f0eb4c3c6aa30da01fcd1ae6752. 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/ES68F2300206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8898e7b2cfc7e39db3889f35956d3ec80157ae4856bea65cf85f98404a5188c4. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/ES68F2300207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a03ede701d1f0f23321994ec6245d5481e16046f5c6ddb97ae00b463beb3ee. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/ES68F2300209.
Desafinando las leyes de la música (Directo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fe5a719bff691e0a75ab3de4fffec0d9a4c290f022530646c1bf3c811bd5ff. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES68R2500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875a7f24c28afacad53e1102a04a4c7bc4b02c88b38fee9dc1ac03ff6e1c5e02. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ES68R2500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d0d50749d2898cc2f8d3b5db66f5c5892ea7585b8dcef5bdfdbdab4aaff106. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES68R2500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816cafa394140bb9bc73a543983a984fb591d208b7b019063fdab5e8314ff29d. 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/ES68R2500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ba9baebfd7611a4803e98e910b7452451e4d845c7bd627e261dee1cd9cf928. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ES68R2500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9055551c3022c10a846564401859891cf6d3eb1721c38b5e6a4b7cc5ef9bc64. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/ES68R2500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a9a564d42af516f4119dbb3e01ea9aaffeace0943429f3e84754252aba7fe3. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/ES68R2500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06df41c711189aed9a1dbe828ba0081281681473a8d1cfd6887c5882b2292c24. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES68R2500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723269a9b569b9900415fcbc925130e1bb90bc123393fffda879b6cc6ed349c6. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T12:00:13Z), 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/ES68R2500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea2772352bd041c343fed01d21592bb2b599b0d1ccef45c172471e7c2c8c09b. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:03:41Z), 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/ES68R2500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeee3909c49f312abd4f3d1c574a1a37ffdcf143eb9a9ae893d31f38b957ee56. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/ES68R2500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d0b818f56e66786fce1dfca77795d555fcc725841a7cb11f4769c9ccdd904a. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/ES68R2500112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8eb02092beefed2828ff9ada4b504e0fe1b4c7fbfd36ab874e54184b30a44e6. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:46Z), 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/ES68R2500113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db2837abc17aa3406e031e1ddb36add34e679844d67e3d412dfac03b9e78818. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/ES68R2500114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f237359046255aaa67e5543a6ccd856c73c4fa4aa2563bbedd3749dab72266. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/ES68R2500116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e59c3b5001558988db5daa1fd0c2ebc9dcc58ed97efce48a54069486cd1d8e1. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/ES68R2500117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793a39fab8f735ee4320e894e3ea7362600a2dd37477e510011641a0a28224a2. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/ES68R2500118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5398dde7749b0a43e4fa58900442ae1e0c3cc5c7df03b20a54b6dcf9bbf0fd84. 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/ES68R2500119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e95a80aa7fe9aea1b45b50c7e49d0b4577ff8280ea8a692461a449ad82ddfa. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES68R2500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe930092c71e048e8f14bc3565459636335d2107b576ef1e3b49dbb11ace360. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ES68R2500121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2f9138022e2c7b26b5c1b3c5c35f08773cae2a116fc51851db9ebeacfae98c. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/ES68R2500122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7856f1bfc9c621484785455a06a39399aee9ad54663864aecb3824c955ae2c88. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES68R2500123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49ad24d92b59e787d97435c288649faf057d6612f3a6b84ddf1d483794cf1f7. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:23:28Z), 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/ES68R2500124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890cf0e5b96cb61cb75ddbf3eb66c01f56329b3b2cba91594836ff8b30ec0166. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:47:09Z), 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/ES68R2500125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118aa9e9af3b61421a6ec5954627b7240da2986921a0eaef3616a3e6bb7fc766. 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/ES68R2500126.