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 0x2cc05c225e0851aa9250f6a7b0b7b263a550b429323f9fe8f47d081550714857. 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/7720c0a2-a98c-481d-869b-6f9722712df7.json and https://artists.proofprofile.net/proofs/artist/7720c0a2-a98c-481d-869b-6f9722712df7.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 0x1a62a35ee6865ea07fa477068aa1ebb00ef74d21ccef7a3c46307be820ac3bc8. 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/DGA082421761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78bacb8e6e9dcb975296b592245b0574c3e36bdd54fc2c53d6783c4d77403863. 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/FR2X41759250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ae6b9dc994490d5474341c796c01554d66af8b21703a332191fd3a38001f69. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:07:52Z), 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/FR2X41759252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fd6804655afb2b95acb5e74973f039292062e12e930182b275c4ba28fd51ee. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:18:16Z), 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/FR2X41759258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc03d7ddfb3ebd074b80b55454e8b0bab6194c69caffe745ed7bb45dbfc468c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR2X41759261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f171d1986c59d23345469fc997159ed5f12d776fdf18c9e17f4b7eee5b15e9f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:49:28Z), 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/TRACC1100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c27f96ab69f4265a5b7ca9d3dbef340c6c8ced67ccc063814dd3ad4466bc989. 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/TRACC1100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15b950718069d164be7fae02eddcb3f110a1412e3ac7eb8bfe2418f3a21d96c. 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/TRACC1100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38efe428d22eb14015f53d0f54ef981084c692242a760e3aa559807e5b611ead. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TRACC1100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7f4d783ee3efba40e810c1bbb7a411581f19a6e04fea8b34067a0bd0486535. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TRACC1100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe739967a6d402f722d347f0d04abcf8a1cdafe0caacbfb52eaee6e04ad6b211c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TRACC1100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6774f2725c22e89a4a8da821026dd26d75c03863be96603c4923a4efab3a1c4c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TRACC1100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a97a94a6e718b8c8abd7479b7f666234dd19b4bba499e15df5a30b76d71288e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TRACC1100088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccab20cce32413d64657d2d4b2fd269eaae56e1a505eb18bee9eace39fa6a57e. 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/TRACC1100096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de1a86a5392cb1367d1a41d388efd79da04e58b7ca46159f4c999e85b8cbb8b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TRACC1100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57a4a635c76ca3038c90ab981cac19a88c1fb676427310bd35cbcc8016f65eb. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TRACC1100022.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8276d69db89e1666207a3e0dd497897b1987c6b783ead6ef0807822e609362. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:05:26Z), 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/TRACC1100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf073cdf09497ab8f93c1abd55d4eb2409964baef8984bd2a013c391e41b6d4f7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TRACC1100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0036239a09e49c9e279c40e53ee5ff6d8d4369f0d4b0219464007499616aa396. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:06:29Z), 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/TRACC1100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c8b0e976deb252c28ce0bd8a2bfe633a5d8dbe2a4b2ed6c014f478426ac4ab. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TRACC1100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe2e626b90113e307eb56fae87177c20a9e97ad948237436cc42bff278cbcbd. 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/TRACC1100117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177122d02a29ae207d8379033a3e75d69bb57f382ab5cdf65a6a9511df829240. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:53:01Z), 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/TRACC1100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7badfe94d21f795a0c0f58a6453908807c80ab9d24cd4b095c5e99cd54be68. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TRACC1300196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9f75cb37ac48ce7afc68f901d4d67825d6405e013e47873f2cda2846263936. 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/TRACC1300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8120399abf04effc06ec915e6a20e3dbddab0176a730abe35b57e2042859e3d. 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/TRACC1300216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3665c6f4274a1f3985553d8ebee314f66d0620a51c2c0d3dc35c880a2b8cb3b7. 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/TRACC1300218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c25d532c6587824b4d4df40ea660f1ea1b38bd77ce5cfa574ccd2ff504a851. Chain 2 (Bitcoin): anchored in block 957688 (2026-07-12T09:52:21Z), 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/TRACC1300219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b3b43086247f97bdc274c2aba40b47d82add29896d0346c407a4e20fa7247e. 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/TRACC1300252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbfc8b0e1c7a72093d92aca8506e1a56765914582a515d57f9e9a95d56f4bd7. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/TRACC1300254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270ede607a093500092212981a8bfa88ff95f587db1e0acb2354cb65e4e5d608. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TRACC1300259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffa672e1ec6c2e3e27410cc4e46fd1dd9beb4953bb9919e4909a86afe4fb51d. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:24:42Z), 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/TRACC1300236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0fc7f0b772a2350a17183a05e4eded2652d21998a5d9b92f66c803a423b75f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TRACC1300238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9bb3ec434520ab2303a33d5b005c12bfd08b4c99fbd0b3cb16e90ecbbbdacd. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/TRACC1300241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614b824be1a2aee10653c953b3ffab9a77167074cfa688284608e704ff741e5c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TRACC1300207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2b9a638441f141fc59d95aa29c23a102669b08fa99e4e813e82de2e357f207. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/TRACC1300245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895c74d8e3d5f5cc85d3ec498ae497457f9a00828ce3e7c290bccd9ec4e76209. 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/TRACC1400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27bcfcb3e3ebdf7dc88713b27c992f570f0a643bc22f52375e14d6c973f44f5. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:28:37Z), 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/TRACC1400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556849d2941b63a5b36ef905ee3703b3893f18324d18cc4e23d80f3f016cee10. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TRACC1400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804629a25a871034565bdffa48f3202eed4c66c925d3d9142e8f76db1dc80664. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TRACC1400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d7903e4a6aded03399cf6d0e5b98b9e497d81380ded6b91d9c4a2c20c3bda5. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:07:51Z), 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/FR96X1711180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff5b8fd27820d5e5f935f2e3adec9e1e7b6a0423475acfd4548a5dc54f0af5d. 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/DEUM70600855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61916bbda25ffec18ce957a327678551260479af21c9a40e925be2471a1ed992. 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/TR0390640009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fc737861f12f0bc7ba7b9bd2ccae967a3b08ebc9ab25049057c432476bf513. 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/DEU231502706.